Miami's Clinton Portis, center, is brought down by Boston College's Vinny Ciurciu, behind top, and Trevor White, right, as Boston College's Doug Bessette, bottom left, rolls away during the first quarter in Boston, Saturday, Nov. 10, 2001. (AP Photo/Steven Senne)

Miami running back Clinton Portis (28) dives towards the goal line after a long run that set up his first touchdown against Pittsburgh in the first quarter of the game in Pittsburgh on Thursday, Sept. 27, 2001. (AP Photo/Keith Srakocic)

Miami's Joaquin Gonzalez, back, Clinton Portis (28) and Robert Hall (77) celebrate a touchdown by Portis late in the game against West Virginia, Saturday, Oct. 30, 1999, at the Orange Bowl in Miami. Miami downed West Virginia 28-20. (AP Photo/Tony Gutierrez)

Denver Broncos running back Clinton Portis dunks the football over the goal post after scoring a touchdown on a 1-yard run against the Seattle Seahawks in Denver on Thursday, Aug. 29, 2002. (AP Photo/Jack Dempsey)

Denver Broncos running back Clinton Portis (26) eludes New England Patriots strong safety Lawyer Milloy (36) for more yardage during first quarter NFL action at Gillette Stadium in Foxboro, Mass. Sunday, Oct. 27, 2002. Portis ran for two touchdowns as the Broncos beat the Patriots, 24-16. (AP Photo/Stephan Savoia)

Running back Clinton Portis of the Denver Broncos breaks free for a big gain during a 24-23 loss to the Kansas City Chiefs on October 5, 2003 at Arrowhead Stadium in Kansas City, Missouri. (AP Photo/G. Newman Lowrance)

Denver Broncos running back Clinton Portis pulls in a 5-yard pass in the second quarter against the San Diego Chargers in Denver, Sunday, Nov. 16, 2003. (AP Photo/Jack Dempsey)

Denver Broncos running back Clinton Portis (26) scores a two-point conversion behind tackle Matt Lepsis (78) and past Oakland Raiders cornerback Nnamdi Asomugha (21) in the fourth quarter, Sunday, Nov. 30, 2003, in Oakland, Calif. The Broncos won, 22-8. (AP Photo/Paul Sakuma)

Denver Broncos tight end Shannon Sharpe, left, and running back Clinton Portis look on from courtside seats to watch the Denver Nuggets and Carmelo Anthony host the Cleveland Cavaliers and rookie LeBron James in Denver on Tuesday, Dec. 2, 2003. (AP Photo/David Zalubowski)

Clinton Portis of the Denver Broncos making a play vs. the Cleveland Browns on Sunday Dec.12, 2003 in Denver, CO. (AP Photo/Kevin Reece)

New York Giants' Jeremy Shockey, left, chats with Denver Broncos' Clinton Portis, center, and Green Bay Packers' Marques Anderson, right, as the three nominees await the naming of the 2002 Pepsi NFL Rookie of the Year in San Diego Wednesday, Jan. 22, 2003. Shockey was named the recipient of the award at the Super Bowl week event. Sunday's Super Bowl XXXVII pits the Oakland Raiders against the Tampa Bay Buccaneers. (AP Photo/Elise Amendola)

Denver Broncos Tom Nalen, Clinton Portis, and Al Wilson at the 2004 NFL Pro Bowl, where the NFC rallied from 25 points behind to win the game by a record (total score) of 55 to 52 over the AFC in Honolulu, Hawaii on February 7, 2004. (AP Photo/Paul Spinelli)

Washington Redskins' head coach Joe Gibbs, left, introduces running back Clinton Portis, right, at the start of a news conference at their training facilities Thursday, March 4, 2004 in Ashburn, Va. The Redskins reached a deal with former Denver Broncos running back, an eight-year contract worth $50.5 million. The deal includes a $17 million bonus. In front of the podium are the team's three Vince Lombardi Super Bowl trophies.(AP Photo/Pablo Martinez Monsivais)

Washington Redskins' Clinton Portis (26) dives over Miami Dolphins linebacker Zach Thomas (54) for a touchdown during the first quarter of a preseason game Saturday, Aug. 21, 2004, in Miami. (AP Photo/Steve Mitchell)

Washington Redskins running back Clinton Portis (26) breaks away from Tampa Bay Buccaneers safety Jermaine Phillips (23) and cornerback Brian Kelly en route to a 64-yard touchdown during the first quarter, Sunday, Sept. 12, 2004, in Landover, Md.(AP Photo/Nick Wass)

Washington Redskins running back Clinton Portis (26) sits on the bench after having a touchdown called back against the Green Bay Packers on Sunday, Oct. 31, 2004, in Landover, Md. The Packers won the game 28-14. (AP Photo/Evan Vucci)

FILE Washington Redskins running back Clinton Portis, dressed as "Coach Janky Spanky," describes his Super Bowl goals during his weekly news conference at Redskins park in Ashburn, Va. in this Jan. 5, 2006 file photo. Portis wasn't merely the heart and soul of the Redskins' offense last season, he also provided character _ or, rather, characters, donning various wigs, fake glasses and other accessories during weekly chats with reporters to assume such alter-egos as Inspector Two-Two and Southeast Jerome. He boosted the Redskins on and off the field, and can't wait to see what he can do in a new offense.. (AP Photo/Caleb Jones, File)

Washington Redskins running back Clinton Portis, center, keeps cool in a straw hat during training camp on Wednesday, Aug. 3, 2005, in Ashburn, Va. At left is wide receiver Darnerien McCants, and at right is running back Rock Cartwright (AP Photo/Evan Vucci)

Washington Redskins coach Joe Gibbs, left, celebrates the Redskins' 14-13 win over the Dallas Cowboys in Irving, Texas, Monday, Sept. 19, 2005. Redskins running back Clinton Portis, center, also joins the celebration. (AP Photo/Donna McWilliam)

Washington Redskins running back Clinton Portis (26) is tackled by Denver Broncos safety Nick Ferguson (25) during the second half in Denver, Sunday, Oct. 9, 2005. Denver beat Washington 21-19. (AP Photo/Jack Dempsey)

Washington Redskins running back Clinton Portis shows up wearing a ski hat and reads a letter to the press after their practice, at the Redskins Park, Wednesday, Jan. 11, 2006, in Ashburn, Va. Portis still has sore shoulders from last week's playoff win over Tampa Bay, but the team expects him to play in Saturday's NFC divisional playoff football game against the Seattle Seahawks. (AP Photo/Manuel Balce Ceneta)

Washington Redskins' running back Clinton Portis walks from his car to the team's training facility, Monday, Sept. 18, 2006 in Ashburn, Va. Portis is on inactive list because of a shoulder injury he originally suffered in the pre-season. (AP Photo/Pablo Martinez Monsivais)

Clinton Portis on the NFL Network Total Access set in Culver City, California on June 23, 2008. (Photo by Ben Liebenberg/NFL)

Clinton Portis on the NFL Network Total Access set in Culver City, California on June 23, 2008. (Photo by Ben Liebenberg/NFL)

Clinton Portis on the NFL Network Total Access set in Culver City, California on June 23, 2008. (Photo by Ben Liebenberg/NFL)

Washington Redskins running back Clinton Portis (26) celebrates a first-quarter touchdown run against the San Francisco 49ers with teamates Santana Moss (89), Robert Royal (88) and Derrick Dockery (66), Sunday, Oct. 23, 2005, in Landover, Md. The Redskins won, 52-17. (AP Photo/Evan Vucci)

Washington Redskins' Clinton Portis is tackled by San Diego Chargers' Randell Godfrey (58) and Donnie Edwards (59) during the fourth quarter, Sunday, Nov. 27, 2005, in Landover, Md. The Chargers won 23-17 in overtime. (AP Photo/Kevin Wolf)

New York Giants linebacker Nick Greisen, right, tries to bring down Washington Redskins running back Clinton Portis, left, during the fourth quarter in NFL football action on Saturday, Dec. 24, 2005 in Landover, Md. The Redskins won, 35-20. (AP Photo/Evan Vucci)

Washington Redskins running back Clinton Portis runs between drills during the Redskins NFL football training camp in Ashburn, Va. Tuesday, Aug. 1, 2006. (AP Photo/Gerald Herbert)

Washington Redskins running back Clinton Portis, right, wears a sling as he talks with coach Joe Gibbs on the sidelines in the second half of a football game against the Cincinnati Bengals, Sunday, Aug. 13, 2006, in Cincinnati. Portis partially dislocated his left shoulder during Washington's opening series. (AP Photo/Al Behrman)

Indianapolis Colts receiver Reggie Wayne, left, has his hat jokingly pushed over his face by Washington Redskins running back Clinton Portis, during a post-game interview following the Colts' 36-22 victory in an NFL football game in Indianapolis, Sunday, Oct. 22, 2006. (AP Photo/Tom Strattman)

Jacksonville Jaguars safety Deon Grant (37) and cornerback Brian Williams (29) try to bring down Washington Redskins running back Clinton Portis (26) during the fourth quarter of a NFL football game, Sunday, Oct. 1, 2006, in Landover, Md. The Redskins won 36-30 in overtime. (AP Photo/Nick Wass)

Running back Clinton Portis #26 of the Washington Redskins is interviewed on the field after the game against the Indianapolis Colts at the RCA Dome on October 22, 2006 in Indianapolis, Indiana. The Colts beat the Redskins 36-22. (AP Photo/David Stluka)

washington Redskins running back Clinton Portis laughs with reporters as he conducts a group interview during the first day of the Redskins football training camp in Ashburn, Va., Friday July 27, 2007. (AP Photo/Gerald Herbert)

Washington Redskins running back Clinton Portis smiles at fans during the NFL football team's training camp practice Saturday, July 28, 2007, in Ashburn, Va. (AP Photo/Evan Vucci)

ADVANCE FOR WEEKEND EDITIONS, JULY 25-26 AND THEREAFTER FILE - In this Aug. 25, 2007 file photo, Washington Redskins owner Daniel Snyder, right, talks to Redskins injured running back Clinton Portis, left, on the sidelines before the start of an NFL preseason football game against the Baltimore Ravens in Landover, Md. (AP Photo/Pablo Martinez Monsivais, FILE)

FILE In this Oct. 28, 2007, file photo, Washington Redskins quarterback Jason Campbell (17) drops back to pass as running back Clinton Portis looks to provide protection during an NFL football game against the New England Patriots in Foxborough, Mass. Portis and Campbell stood together on the stairs, looking like a pair of running mates. When asked which one was the head of the ticket, Portis pointed to Campbell _ because the running back doesn't want the criticism the quarterback has to endure. (AP Photo/Stephan Savoia, File)

Washington Redskins' Clinton Portis, right, runs past Miami Dolphins' Yeremiah Bell, left, to score in the third quarter of an NFL football game, Sunday, Sept. 9, 2007, in Landover, Md. The Redskins won in overtime 16-13. (AP Photo/Pablo Martinez Monsivais)

Washington Redskins running back Clinton Portis lifts up his jersey to reveal a T-shirt with images of the late Redskins safety Sean Taylor on it, after scoring a touchdown against the Dallas Cowboys during the third quarter of an NFL football game, Sunday, Dec. 30, 2007 in Landover, Md. The Redskins won 27-6. (AP Photo/Nick Wass)

Washington Redskins, left to right, Clinton Portis, Tavares Washington, partially visible background, Randy Thomas, Casey Rabach and Stephon Heyer present a birthday cake to teammate Chris Samuels, not pictured, after morning workouts at the Redskins training camp in Ashburn, Va. Monday July 28, 2008. (AP Photo/Gerald Herbert)

Washington Redskins running back Clinton Portis, front, is tackled by New Orleans Saints cornerback Jason Craft, top, and safety Kevin Kaesviham during the second quarter of their NFL football game on Sunday, Sept. 14, 2008, in Landover, Md. The Redskins won the game 29-24. (AP Photo/Evan Vucci)

Washington Redskins running back Clinton Portis waves an American flag as he is introducedprior to the start of their NFL football game against the Dallas Cowboys in Landover, Md. Sunday, Nov. 16, 2008. (AP Photo/Gerald Herbert)

Seattle Seahawks' Rocky Bernard brings down Washington Redskins' Clinton Portis during the second half of an NFL football game Sunday, Nov. 23, 2008, in Seattle. The Redskins won 20-17. (AP Photo/Elaine Thompson)

Washington Redskins coach Jim Zorn talks with running back Clinton Portis after the Redskins' 20-17 win over the Seattle Seahawks in an NFL football game Sunday, Nov. 23, 2008, in Seattle. (AP Photo/John Froschauer)

Washington Redskins' Shaun Alexander, left, greets Seattle Seahawks' Deion Branch after an NFL football game Sunday, Nov. 23, 2008, in Seattle. The former NFL MVP Alexander was released by Washington on Tuesday, Nov. 25, after getting only 11 carries in five games. Alexander was signed Oct. 14 after backup Ladell Betts sprained his knee in a loss to the St. Louis Rams. Betts has since returned and resumed the No. 2 role behind NFL leading rusher Clinton Portis. (AP Photo/Elaine Thompson)

Washington Redskins running back Clinton Portis is tackled by St. Louis Rams safety Oshiomogho Atogwe during the second half of an NFL football game Sunday, Sept. 20, 2009, in Landover, Md. Portis regained control of the ball. The Redskins won 9-7. (AP Photo/Nick Wass)

Washington Redskins running back Clinton Portis speaks at a news conference for the Pro Bowl at NFL football Super Bowl XLIII Wednesday, Jan. 28, 2009, in Tampa, Fla. (AP Photo/Chris O'Meara)

Washington Redskins running back Clinton Portis carries the ball during the NFL football game against Tampa Bay Buccaneers in Landover, Md., Sunday, Oct. 4, 2009. (AP Photo/Alex Brandon)

Washington Redskins running back Clinton Portis breask through the line during the first quarter of an NFL football game against the Atlanta Falcons Sunday, Nov. 8, 2009 in Atlanta. (AP Photo/John Amis)

Athlete Clinton Portis attends the Seminole Hard Rock Revolution Party at the Seminole Hard Rock Hotel and Casino, Friday, Jan. 30, 2009 in Tampa, Florida. (Shea Walsh/AP Images for Seminole Hard Rock Hotel & Casino Tampa)

Hula girls flank members of the NFC All-Stars (L-R) Clinton Portis #26, Chris Cooley #47, and Mike Sellers #45 of the Washington Redskins at team photo day the week of the 2009 NFL Pro Bowl at the Ihilani Resort and Spa on February 6, 2009 in Kapolei, Hawaii. (AP Photo/Paul Spinelli)

FILE - This Aug. 7, 2010, file photo shows Washington Redskins running back Clinton Portis, right, signing autographs for fans after football practice at the NFL football team's training camp, at Redskins Park in Ashburn, Va. Thursday, Sept. 16, 2010, was Clinton Portis' day to explain his inflammatory comments about female reporters. Instead, he decided to have some fun with it. (AP Photo/Nick Wass, File)

NFC All-Stars running back Clinton Portis #26 of the Washington Redskins looks on during a break in the action against the AFC All-Stars in the 2009 NFL Pro Bowl at Aloha Stadium on February 8, 2009 in Honolulu, Hawaii. The NFC defeated the AFC 30-21. (AP Photo/Paul Spinelli)

Clinton Portis reacts announces his retirement from the Washington Redskins NFL football team, with sons Camdin, left, and Chaz, both four years old, during a news conference at Redskins Park in Ashburn, Va., Thursday, Aug. 23, 2012. . (AP Photo/Richard Lipski)