FOXBOROUGH, Mass. -- New England Patriots quarterback Tom Brady, who missed Wednesday's practice with right finger, rib and right shoulder injuries, was present at practice Thursday and Friday at Gillette Stadium and is being listed as probable for Sunday's game against the Bills.
Brady missed practices Wednesday and Thursday last week as well. He was listed as questionable on the team's injury report heading into the Patriots' game against the Carolina Panthers, and coach Bill Belichick later said that there was concern up to game time about his availability.
"We waited until game time ... to make the final decision," Belichick said Tuesday. "We thought there was certainly a chance that he would play, a good chance that he would play, but also a concern. That's why it was listed the way it was."
While the news on Brady is good, things don't look as positive for two key defensive linemen. Defensive tackles Vince Wilfork and Ty Warren did not participate in practice Friday for the third straight day, and both are being listed as questionable. In addition to Wilfork and Warren, the Patriots have nine other players listed as questionable: Receiver Sam Aiken (shoulder), linebacker Tully Banta-Cain (shoulder), receiver Julian Edelman (forearm), defensive end Jarvis Green (knee), tackle Nick Kaczur (shoulder), guard Stephen Neal (ankle), defensive lineman Myron Pryor (chest), running back Fred Taylor (ankle) and tight end Benjamin Watson (knee).
A questionable designation means the player has a 50-50 chance of suiting up.
"We'll see where they are," Belichick said Friday. "One thing about those guys, they've played a lot of football for us. They know how to play their techniques and all that. Would you like to have everybody out there [for practice]? Sure. But I think those guys could play without having practiced all week. So we'll just have to see where everybody is here, at game-time or maybe tomorrow."
If Wilfork does not play Sunday, rookie Pryor would be a top candidate to replace him. But Pryor is also ailing, after missing Sunday's game with a chest injury. First-year player Titus Adams, who was promoted off the practice squad last week, played the nose when Wilfork left Sunday's win over Carolina. Rookie Ron Brace is another possibility.
At left end, the Patriots would likely turn to five-year veteran Mike Wright if Warren can't play. Warren played last week but, like Wilfork, did not finish the game.
ESPNBoston.com's Mike Reiss contributed to this report.