Buffalo Bills injury report: Secondary hurting heading into Raiders’ game

As the Buffalo Bills (4-2) prepare to welcome the Oakland Raiders (3-4) to New Era Field at 1 p.m. Sunday in an important AFC showdown, Buffalo will be without the services of starting cornerback E.J. Gaines.First-year head coach Sean McDermott told the media Friday that Gaines, who left Sunday’s 30-27 win over the Tampa Bay Buccaneers with a hamstring injury early in the third quarter, has been ruled out for Sunday.

Gaines, acquired from the Los Angeles Rams in the Sammy Watkins trade, has missed at least one play in every game this season due to injury, including the entire game against the Cincinnati Bengals with a groin injury. This is the second time he’ll miss an entire game.

Starting free safety Jordan Poyer (knee), one of Buffalo’s best free-agent signings, is listed as day-to-day after he injured his knee on the final play of the Tampa Bay game.

With Derek Carr, Amari Cooper, Michael Crabtree, and the potent Raiders’ passing game coming to town, it would be a difficult blow to lose both Gaines and Poyer.

In other injury news, starting left guard Richie Incognito (ankle), who did not practice Thursday, will practice on a limited basis moving forward. Incognito is expected to suit up and play when the Bills square off against the Raiders Sunday, though McDermott said John Miller, Ryan Groy, and others have received repetitions this week at practice in Incognito’s absence.

Already ruled out for the game are linebacker Ramon Humber (thumb) and Charles Clay (knee).

Making everything worse is the quick turnaround time for next Thursday’s game. If a guy might set himself back, Buffalo might be more apt to hold him out so he is healthy for the divisional match-up against the New York Jets.