Derek Anderson's season is officially over, yet another slap for the down-on-their-luck Cleveland Browns.

Anderson, who lost his starting job to Brady Quinn several weeks ago, will miss the final four games after a ligament in his left knee was torn Sunday against Indianapolis.

An MRI taken yesterday revealed Anderson tore the medial collateral ligament when he was sacked in the final minutes of Cleveland's 10-6 loss to the Colts. Anderson, making his first start since Nov. 2 after being benched for Quinn, will not need surgery. He will be placed in a brace and will need four to six weeks to recover.

Quinn, too, is done for the season with a finger injury. He has not yet decided whether to have surgery on his broken right index finger, which was hurt Nov. 17 at Buffalo.

The injuries to their top two quarterbacks means the Browns (4-8) will start Ken Dorsey Sunday against the Tennessee Titans (11-1). Return specialist Joshua Cribbs, who played quarterback at Kent State, will serve as Dorsey's backup unless the Browns can sign a veteran quarterback in the next few days.

Dorsey hasn't completed a pass in an NFL game in three years and has attempted just four since joining the Browns in 2006.

Browns tight end Kellen Winslow also will sit out this week after sustaining a high ankle sprain Sunday. Winslow will be fitted with a walking boot for one week, but it's still too early to determine if he'll play again this season.

Although Tampa Bay expects to have Monte Kiffin, 68, drawing up defensive game plans for the rest of the season, his future with the NFC South co-leaders remains unclear. Neither Kiffin or the Buccaneers have done anything to end speculation that their defensive coordinator has decided to leave the NFL to work for his son, Lane, the new coach at the University of Tennessee.

Buccaneers general manager Bruce Allen said he knows how the situation will play out, but would not disclose whether Kiffin is staying or will give up a $2 million salary that makes him one of the highest-paid defensive assistants in the league. Coach Jon Gruden said either way, Kiffin will be with Tampa Bay at least through the end of the season.

Linebacker DeMarcus Ware and running back Marion Barber were not at practice yesterday, the first time Dallas was back on the field since both were hurt Thanksgiving Day. Coach Wade Phillips said both were "day to day." Ware, the NFL sacks leader, has a hyperextended left knee and Barber has a dislocated right pinkie toe.

Green Bay has seen enough from inconsistent punter Derrick Frost. Coach Mike McCarthy said will cut Frost and replace him with another player this week. McCarthy said Frost, who was signed when the team cut Jon Ryan just before the season opener in September, performed well in practices but couldn't carry it over to games.

Nose tackle Dusty Dvoracek will miss the final four games after his right biceps was ruptured in a loss Sunday night at Minnesota, his third season-ending injury in as many NFL seasons.

Detroit signed wide receiver Keary Colbert, giving him a chance to play for his third NFL team this season. Detroit added him to the roster when it put wide receiver Mike Furrey on injured reserve because of a concussion.

The Patriots will play the Buccaneers next season at Wembley Stadium, the third consecutive year the NFL will stage a regular-season game in the British capital. The game will be played Oct. 25.