Giants' Tuck out vs. Bills after missing third straight practice

The New York Giants will be without defensive linemen Justin Tuck and running back Brandon Jacobs for at least one more week.

Giants coach Tom Coughlin said Friday that Tuck has been ruled out of Sunday's game against the Buffalo Bills, as was expected. Tuck has missed the last two games with neck and groin injuries and has yet to practice this week. Jacobs missed his third straight day of practice Friday, according to The Star-Ledger, which would appear to end his chances of playing. Jacobs sat out last week's loss to the Seahawks with a sprained medial collateral ligament in his left knee.

Coughlin also said starting right guard Chris Snee, who suffered a concussion against the Seahawks, would be out Sunday.

Bills linebacker Shawne Merriman (Achilles) was listed as doubtful after he was limited in practice Friday. Bills coach Chan Gailey said Merriman's Achilles flared up during Thursday's practice, forcing him to miss Friday.

Linebacker Nick Barnett (ankle) was also limited, while defensive tackle Kyle Williams (foot) did not practice for the third straight day. Both are questionable, and Williams is expected to be a game-time decision. Linebacker Chris Kelsay (calf) and wide receiver Donald Jones (ankle) were ruled out.

For a complete look at all injuries around the league, go to NFL.com's injury page.

The Associated Press contributed to this report