New England Patriots quarterback Tom Brady (12) during the second quarter against the Denver Broncos at Sports Authority Field. (Ron Chenoy-USA TODAY)

Oakland Raiders wide receiver Michael Crabtree (15) is brought down by San Diego Chargers strong safety Jahleel Addae, below, and cornerback Trevor Williams, above, during the first half of an NFL football game Sunday, Dec. 18, 2016, in San Diego. (AP Photo/Alex Gallardo)

New Orleans Saints running back Tim Hightower (34) scores a touchdown against the Arizona Cardinals during the second half of an NFL football game, Sunday, Dec. 18, 2016, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Kansas City Chiefs tight end Travis Kelce (87) is chased by Tennessee Titans safety Kevin Byard (31), defensive back Valentino Blake, second from left, and linebacker Wesley Woodyard, left, during the first half of an NFL football game in Kansas City, Mo., Sunday, Dec. 18, 2016. (AP Photo/Charlie Riedel)

Cleveland Browns quarterback Robert Griffin III, center, avoids a tackle by Buffalo Bills free safety Corey Graham, right, and outside linebacker Jerry Hughes before scoring a touchdown run during the second half of an NFL football game, Sunday, Dec. 18, 2016, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Cincinnati Bengals running back Jeremy Hill celebrates his touchdown in the first half of an NFL football game against the Pittsburgh Steelers, Sunday, Dec. 18, 2016, in Cincinnati. (AP Photo/Gary Landers)

Green Bay Packers wide receiver Jordy Nelson (87) hones in on a pass from Aaron Rodgers late in the fourth quarter to set up the winning field goal as the Packers beat the Chicago Bears 30-27 on Sunday, December 18, 2016 at Solider Field in Chicago. (Todd Rosenberg/NFL)

Oakland Raiders wide receiver Michael Crabtree, left, keeps both feet in for a touchdown catch as San Diego Chargers cornerback Trevor Williams defends during the first half of an NFL football game Sunday, Dec. 18, 2016, in San Diego. (AP Photo/Denis Poroy)

Seattle Seahawks defensive back Richard Sherman (25) can't hold on to in interception during an NFL game against the Los Angeles Rams on Thursday, Dec. 15, 2016, in Seattle, Wash. The Seahawks won the game, 24-3. (Greg Trott via AP)

Dallas Cowboys running back Ezekiel Elliott (21) leaps over Tampa Bay Buccaneers safety Bradley McDougald (30) and safety Keith Tandy (37) in the first quarter at AT&T Stadium. (Matthew Emmons/USA TODAY)