Cowboys LB Sean Lee suffered a dislocated wrist that will prevent him from playing Sunday versus Seattle and possibly well beyond.
Lee, the Cowboys second-round draft pick last season, has been a breakout player for new defensive coordinator Rob Ryan.
The 6'2 245 linebacker from Penn State has the athleticism to be an excellent pass defender, with three interceptions this season, as well as the strength to stuff the run as well.
Without him in the game, Dallas has to play the 36-year old Keith Brooking and the 30-year old Bradie James at the same time, and neither player can move as well in space as Lee, which the Eagles exploited by attacking the middle of the field on Sunday.
While the Cowboys play one of the league's worst offenses in Seattle this week, Lee's absence would be sorely felt in a Nov. 13 match-up with the surprising 5-2 Buffalo Bills.