Patrick Chung, Albert Haynesworth out

BUFFALO, N.Y. -- The Patriots announced Saturday that they have downgraded safety Patrick Chung, defensive lineman Albert Haynesworth and receiver Taylor Price to out for Sunday's game against the Bills.

Chung underwent surgery on his right thumb this week. He returned to practice on Friday. On Thursday, the Boston Herald reported that Chung would be out.

On Sunday, the Patriots' banged-up secondary took another hit when it was announced before the game that cornerback Ras-I Dowling would be out with a hip injury.

Dowling was out on the field early Sunday working with the training staff, but didn't look comfortable going through running drills. His absence could mean increased game action for the likes of corners Antwaun Molden and Phillip Adams. Devin McCourty and Leigh Bodden project as the starting corners against the Bills.

The Patriots will be counting on Sergio Brown (second year), Josh Barrett (fourth year) and James Ihedigbo (fifth year) at safety, and promoted Ross Ventrone off the practice squad Saturday.

Meanwhile, Haynesworth injured his back this week, forcing him to miss practice Thursday and Friday. The Patriots are suddenly very thin along the interior of the defensive line, with Vince Wilfork and Kyle Love atop the depth chart, and Landon Cohen -- re-signed this week -- the next man in. Shaun Ellis could also kick inside in a sub defense.

The interior defensive line has been hit hard by injuries, with Myron Pryor placed on injured reserve (shoulder) this week, Mike Wright remaining out with a concussion, and now Haynesworth.

And at receiver, Price missed his third straight game with a hamstring injury. The Patriots figure to have receivers Wes Welker, Deion Branch, Chad Ochocinco, Julian Edelman and Matthew Slater active for Sunday's game.

Mike Reiss covers the Patriots for ESPNBoston.com.