Colt McCoy exited Monday’s game against the Eagles with a lower leg injury and the Redskins later announced he would not return.After Washington’s 28-13 loss in Philadelphia, head coach Jay Gruden said he expects the quarterback to miss the rest of the season. Mark Sanchez replaced McCoy under center.Sanchez joined the Washington organization in early November to serve as a backup to McCoy. He received his first regular-season action since 2016. Jay Gruden says that from what he understands QB Colt McCoy fractured his fibula and will miss the remainder of the 2018 season.— Washington Redskins (@Redskins) December 4, 2018McCoy reportedly fractured his right fibula and is expected to miss the rest of the season.Per @saltersl, X-Rays for #Redskins QB Colt McCoy came back showing a fractured right fibula. His season is over. Finally get a chance… and now this. Brutal.— Ian Rapoport (@RapSheet) December 4, 2018McCoy, who was taking over for an injured Alex Smith, suffered the injury in the second quarter and was walking with a noticeable limp. He later had x-rays taken in the team’s locker room.