Barnett told reporters that he tweaked an ankle near the end of last week's loss to Cincinnati, and was held out of today's workout as a precaution. Early indications are that running back C.J. Spiller (knee), center Eric Wood (ankle) and linebacker Shawne Merriman (shoulder) received similar treatment.
Demetrius Bell (shoulder), Ruvell Martin (knee), Chris White (hamstring) and Aaron Williams (collarbone) all missed practice on Wednesday. Bell, White and Williams are expected to be out for the foreseeable future.
The news wasn't all bad, however. Terrence McGee was a full practice participant for the first time since Week 1, though it remains unclear if he'll play this weekend. Kraig Urbik was also a full participant on Wednesday, and figures to return to the starting lineup this weekend.
On Philadelphia's side of things, Jason Peters and Trent Cole missed practice - as expected - while Brent Celek (illness) and Juqua Parker (ankle) were limited. 11 more players were listed as full participants, including quarterback Michael Vick.