Cooley has successful surgery
Cooley's surgery was Wednesday, two days after he was injured in the first half of Washington's 27-17 loss to the Philadelphia Eagles.
The Redskins originally feared the two-time Pro Bowl player could be sidelined for two months and might have to go on injured reserve, missing the rest of the season.
After Wednesday's operation, though, he is expected to miss four weeks, barring any setbacks.
Cooley, who has never missed a game since the Redskins drafted him in the third round in 2004, has 29 catches for 332 yards and two touchdowns this season.
Copyright 2009 by The Associated Press