Detroit defensive tackle Ndamukong Suh has been suspended for Sunday's wild-card playoff game against Dallas for a violation of safety-related playing rules against Green Bay in the season finale.

The league announced Monday that Suh was suspended for stepping on Packers quarterback Aaron Rodgers' left leg twice, once with each foot. Suh also applied pressure and pushed off Rodgers' unprotected leg with his left foot, violating unnecessary roughness rules, the league said in a statement.

Suh, who will be reinstated next Monday, can appeal the suspension within three days. He can ask for an expedited appeal, which would be heard by Ted Cottrell, a hearing officer employed by the NFL and the players' union. No hearing is scheduled, but one could happen as soon as Tuesday.

Bills' Orton to retire

Quarterback Kyle Orton told the Buffalo Bills that he plans to retire.

The surprise decision places further emphasis on the team's offseason need to address what's long been an unsettled position.

The Bills announced Orton's decision a day after the 10-year journeyman led Buffalo (9-7) to a season-ending 17-9 win at New England.

Manziel rues conduct

Johnny Manziel says the party's over.

The quarterback apologized to his Browns teammates for a season of distractions and vowed to change.

Manziel was fined over the weekend by the team after he missed a medical treatment for a hamstring injury. Manziel said he overslept but denied a threw a party Friday night that also caused star wide receiver Josh Gordon to miss a team walk-through and draw a suspension for the season finale in Baltimore.

Ex-Lion in playoffs

Former Penn State player and NFL rookie offensive lineman John Urschel got just his third start of the season for the Baltimore Ravens against the Cleveland Browns on Sunday.

Forced into action because of injuries, Urschel started at right guard while fellow rookie James Hurst got the start at left tackle.

Urschel's start came in a game the Ravens needed to win to keep their playoff hopes alive, which they did with a 20-10 victory.

The Ravens will meet the Pittsburgh Steelers in a wild-card playoff game on Saturday night.

- Associated Press