Denver Broncos quarterback Brock Osweiler warms up in frigid temperatures before playing the Baltimore Ravens in an AFC divisional playoff game. (AP Photo/Jack Dempsey)

Baltimore Ravens running back Ray Rice celebrates a touchdown against the Denver Broncos. (Mark J. Rebilas/USA TODAY Sports)

New England Patriots wide receiver Wes Welker pulls in a 47-yard pass from Tom Brady. (AP Photo/Elise Amendola)

Denver Broncos linebacker Wesley Woodyard reacts during the AFC divisional playoff game against the Baltimore Ravens. (Ric Tapia/NFL)

Michael Crabtree and Colin Kaepernick celebrate during the San Francisco 49ers' win over the Green Bay Packers. (Ben Liebenberg/NFL)

Green Bay Packers wide receiver James Jones catches a pass as the San Francisco 49ers' Chris Culliver (29) and Dashon Goldson (38) attempt to intercept. (AP Photo/Tony Avelar)

Atlanta Falcons kicker Matt Bryant (3) reacts to his game-winning field goal attempt against the Seattle Seahawks. (AP Photo/David Goldman)

Colin Kaepernick sprints past the Green Bay Packers defense for a San Francisco 49ers touchdown. (Ben Liebenberg/NFL)

Baltimore Ravens wide receiver Jacoby Jones catches a pass for a touchdown despite the defense of Denver Broncos free safety Rahim Moore. The miraculous score forced overtime, where the Ravens earned victory. (AP Photo/Jack Dempsey)

Jason Snelling (44) and quarterback Matt Ryan celebrate after scoring a touchdown in the Atlanta Falcons' win over the Seattle Seahawks. (Perry Knotts/NFL)