The Redskins are down one quarterback and a starting lineman after Monday night’s loss to the Eagles. Guard Jonathan Cooper suffered a torn biceps tendon that will end his season, as Mike Garafolo of NFL.com tweets. 
[Redskins’ Colt McCoy Suffers Season Ending Injury]
Cooper, a former first round pick, started in each of his 13 appearances last year with Dallas. He hooked on with the 49ers in the offseason, but failed to make their final cut. Finally, last month, he found an opening with the Redskins after starting guards Brandon Scherff and Shawn Lauvao were lost to injury.
Cooper started in all four of his games for the Redskins, seeing time at both left guard and left tackle. His ~200 snaps didn’t give us much of a sample, but the metrics at Pro Football Focus rated him as a below-average protector.
The 28-year-old (29 in January) graded out as the No. 35 guard in the NFL last season, per PFF, and his past performance should allow him to draw some interest on the open market. Unfortunately, he probably won’t live up to the promise that many thought he had in 2013 when the Cardinals made him the No. 7 overall pick.