Cleveland Browns quarterback Johnny Manziel talks with the media at the NFL football team's training camp, Monday, Dec. 29, 2014, in Berea, Ohio. Along with key injuries and late-game collapses, the Browns' seventh straight losing season was undermined by the antics of wide receiver Josh Gordon, Manziel and cornerback Justin Gilbert. Owner Jimmy Haslam promised the organization will weed out any problem players. (AP Photo/Tony Dejak)

Cleveland Browns' Johnny Manziel (2) is helped off the field after being injured in the first half of an NFL football game against the Carolina Panthers on Sunday, Dec. 21, 2014 in Charlotte, N.C. Manziel's rookie season in the NFL wasn't what he or the Browns or his legion of fans expected. He started one game, couldn't make it through his second without getting hurt and didn't look like a franchise-changing quarterback. (AP Photo/Chuck Burton)

Cincinnati Bengals defensive tackle Geno Atkins (97) sacks Cleveland Browns quarterback Johnny Manziel (2) in the third quarter of an NFL football game Sunday, Dec. 14, 2014, in Cleveland. (AP Photo/David Richard)

Cleveland Browns quarterback Johnny Manziel celebrates after scoring a touchdown against the Buffalo Bills during the second half of an NFL football game, Sunday, Nov. 30, 2014, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Cleveland Browns rookie quarterback Johnny Manziel (2) looks at Cleveland Browns quarterback Brian Hoyer (6) on the sideline during the NFL week 9 regular season football game against the Tampa Bay Buccaneers on Sunday, Nov. 2, 2014 in Cleveland. The Browns won the game 22-17. (AP Photo/Paul Spinelli)

Cleveland Browns quarterback Johnny Manziel, center, talks to a seatmate in the first half of an NBA basketball game between the New York Knicks and the Cleveland Cavaliers, Thursday, Oct. 30, 2014, in Cleveland. (AP Photo/Tony Dejak)

Cleveland Browns quarterback and former Texas A&M quarterback Johnny Manziel, center, joins the Armani Watts (23), and the rest of the team and staff as they sing the Aggie War Hymn after the Aggies 35-28 overtime win against Arkansas in an NCAA college football game, Saturday, Sept. 27, 2014, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Young fans clamor for autographs from Cleveland Browns quarterback Johnny Manziel (2) after practice at NFL football training camp in Berea, Ohio Tuesday, Aug. 12, 2014. (AP Photo/Mark Duncan)

Johnny Manziel poses with NFL Commissioner Roger Goodell after being selected by the Cleveland Browns during the 2014 NFL Draft at Radio City Music Hall on May 8, 2014 in New York, NY. (Ben Liebenberg/NFL)

Quarterback Johnny Manziel (Texas A&M) the number 22 overall pick to the Cleveland Browns during the NFL Draft on Thursday May 8,2014 at Radio City Music Hall in New York City. (AP Photo/Tomasso DeRosa)

Johnny Manziel is seen backstage after being selected by the Cleveland Browns during the 2014 NFL Draft at Radio City Music Hall on May 8, 2014 in New York, NY. (Ben Liebenberg/NFL)

Texas A&M University quarterback Johnny Manziel speaks with NFL Network's Matt Smith and Bucky Brooks at the 2014 NFL Scouting Combine at Lucas Oil Stadium in Indianapolis, on February 23, 2014. (Ben Liebenberg/NFL)

Texas A&M University quarterback Johnny Manziel runs the 3 cone drill at the 2014 NFL Scouting Combine at Lucas Oil Stadium in Indianapolis, on February 23, 2014. (Ben Liebenberg/NFL)

Texas A&M University quarterback Johnny Manziel speaks to the media at the 2014 NFL Scouting Combine at Lucas Oil Stadium in Indianapolis, on February 21, 2014. (Johnny Vy/NFL)

Texas A&M quarterback Johnny Manziel smiles from the sidelines during the first half of the NCAA BCS National Championship college football game between Auburn and Florida State Monday, Jan. 6, 2014, in Pasadena, Calif. (AP Photo/David J. Phillip)

Texas A&M quarterback Johnny Manziel kisses the Heisman Trophy after becoming the first freshman to win the college football award, Saturday, Dec. 8, 2012, in New York. (AP Photo/Henny Ray Abrams)

Texas A&M quarterback Johnny Manziel (2) is joined by wide receiver Kenric McNeal (5) and defensive back Dustin Harris (22) as they celebrate after the Aggies defeated top-ranked Alabama 29-24 in an NCAA college football game at Bryant-Denny Stadium in Tuscaloosa, Ala., Saturday, Nov. 10, 2012. (AP Photo/Dave Martin)

Texas A&M quarterback Johnny Manziel celebrates with teammates after their 41-13 win over Oklahoma in the Cotton Bowl NCAA college football game Friday, Jan. 4, 2013, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Texas A&M quarterback Johnny Manziel (2) dives for the end zone for a touchdown past Auburn linebacker Cassanova McKinzy (30) and Auburn linebacker Daren Bates (25) during the first half of an NCAA college football game on Saturday, Oct. 27, 2012, in Auburn, Ala. (AP Photo/Butch Dill)

Texas A&M quarterback Johnny Manziel (2) runs through the tackle of Alabama defensive back Deion Belue (13) during the first half of an NCAA college football game at Bryant-Denny Stadium in Tuscaloosa, Ala., Saturday, Nov. 10, 2012. (AP Photo/Dave Martin)

Texas A&M quarterback Johnny Manziel walks out to the field before an NCAA college football game against Mississippi State Saturday, Nov. 9, 2013, in College Station, Texas. (AP Photo/David J. Phillip)

Texas A&M quarterback Johnny Manziel (2) breaks away from Arkansas defender Alonzo Highsmith (45) as teammate Ben Malena (1) hops over a helmet in the first half of an NCAA college football game Saturday, Sept. 29, 2012, in College Station, Texas. (AP Photo/Pat Sullivan)

Texas A&M's Johnny Manziel (2) and teammates lift the trophy following their 41-13 victory against Oklahoma in the Cotton Bowl NCAA college football game Friday, Jan. 4, 2013, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Texas A&M University Aggies quarterback Johnny Manziel (2) looks on as a detail view of the back of his jersey can be seen during an NCAA college football game against the Mississippi State University Bulldogs at Kyle Field on Saturday November 9, 2013 in College Station, Texas. Texas A&M University won 51-41. (Aaron M. Sprecher/NFL)

Texas A&M's Johnny Manziel (2) celebrates a touchdown with teammate Ben Malena (1) during the fourth quarter of an NCAA college football game against Rice, Saturday, Aug. 31, 2013, in College Station, Texas. (AP Photo/Eric Gay)

Texas A&M quarterback Johnny Manziel (2) is chased by Duke linebacker C.J. France (54) in the second half of the Chick-fil-A Bowl NCAA college football game Tuesday, Dec. 31, 2013, in Atlanta. (AP Photo/John Bazemore)

Texas A&M quarterback Johnny Manziel (2) and Alabama quarterback AJ McCarron (10) meet on the field after Alabama won 49-4-2 in an NCAA college football game Saturday, Sept. 14, 2013, in College Station, Texas. (AP Photo/David J. Phillip)

Texas A&M quarterback Johnny Manziel (2) rushes for a touchdown against Florida during the second quarter of an NCAA college football game, Saturday, Sept. 8, 2012, in College Station, Texas. (AP Photo/Dave Einsel)

Texas A&M quarterback Johnny Manziel (2) rushes for a 7 yard touchdown as he avoids the tackle of SMU defensive back Kenneth Acker (21) during the first quarter of an NCAA college football game in College Station, Texas. (AP Photo/Bob Levey)

Texas A&M University Aggies quarterback Johnny Manziel (2) celebrates after throwing a touchdown pass during an NCAA college football game against the Sam Houston State University Bearkats at Kyle Field on Saturday September 7, 2013 in College Station, Texas. Texas A&M University won 65-28. (Aaron M. Sprecher/NFL)

Texas A&M quarterback and Heisman trophy winner, Johnny Manziel works out with coach George Whitfield Jr. at Mission Beach and on campus at UCSD in San Diego, Ca; on Wednesday, May 15, 2013. (Nick Lucero/NFL)

Texas A&M quarterback Johnny Manziel watches from the sidelines during the first half of the NCAA BCS National Championship college football game between Auburn and Florida State Monday, Jan. 6, 2014, in Pasadena, Calif. (AP Photo/Mark J. Terrill)

Heisman Trophy finalists, from left, Northern Illinois quarterback Jordan Lynch, Texas A&M quarterback Johnny Manziel, Auburn running back Tre Mason, Alabama quarterback AJ McCarron, Boston College running back Andre Williams and Florida State quarterback Jameis Winston stand behind the trophy before it was announced that Winston is this year's trophy winner at the Best Buy Theater, Saturday, Dec. 14, 2013 in New York. (AP Photo/Heisman Trust, Kelly Kline)

Texas A&M quarterback Johnny Manziel, left, answers questions during a media availability prior to the College Football Awards show in Lake Buena Vista, Fla., Wednesday, Dec. 11, 2013. (AP Photo/Phelan M. Ebenhack)

Heisman Trophy winner and Texas A&M quarterback Johnny Manziel, left, poses with former NFL quarterback Archie Manning and the the Manning Award, which Manziel will be receiving as the nation's top quarterback, Thursday, May 2, 2013, in New Orleans. (AP Photo/Gerald Herbert)

A fan holds a sign for Texas A&M quarterback Johnny Manziel during the fourth quarter of an NCAA college football game against Rice, Saturday, Aug. 31, 2013, in College Station, Texas. (AP Photo/Eric Gay)

Heisman Trophy winner Texas A&M quarterback Johnny Manziel waves as he takes the field to throw out the first pitch before the baseball game between the Los Angeles Angels and Texas Rangers Sunday, April 7, 2013, in Arlington, Texas. (AP Photo/LM Otero)

Texas A&M quarterback Johnny Manziel (2) celebrates after throwing to touchdown pass to Ja'Quay Williams (not shown) during the second quarter of an NCAA college football game against Sam Houston State, Saturday, Sept. 7, 2013, in College Station, Texas. (AP Photo/David J. Phillip)

Texas A&M quarterback Johnny Manziel reacts after the Aggies scored their third touchdown of the first quarter against Alabama at Bryant-Denny Stadium in Tuscaloosa, Ala. (AP Photo/Dave Martin)

Texas A&M's Johnny Manziel reacts after a touchdown run against Florida in College Station, Texas. (AP Photo/Dave Einsel)