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Alex Carrington out for season

ORCHARD PARK, N.Y. -- Buffalo Bills defensive lineman Alex Carrington will miss the rest of the season after tearing a quadriceps tendon during Sunday's loss to the New York Jets, coach Doug Marrone said Monday.

Carrington, who was scheduled to undergo surgery Monday, started the Bills' first three games. Veteran defensive lineman Alan Branch is expected to replace Carrington, who was placed on season-ending injured reserve.

Two other Bills defensive linemen -- Mario Williams and Marcell Dareus -- suffered ankle injuries in Sunday's game, but Marrone said he believes both "will be fine."

Williams appeared to get tangled up on a Jets extra point in the fourth quarter and also did not return. Dareus left in the third quarter and did not return.

Williams plans on playing next weekend against Baltimore unless his ankle doesn't improve this week, a league source told ESPN.

Leodis McKelvin left Sunday's game in the first quarter with a hamstring injury, and Marrone said he was uncertain when the cornerback will return. The Bills already are without cornerback Stephon Gilmore (fractured wrist) and safety Jairus Byrd (feet) in the secondary.

ESPN NFL Insider Adam Schefter contributed to this report.