Redskins' DeSean Jackson to undergo MRI on injured hamstring

Washington Redskins wide receiver DeSean Jackson is scheduled to undergo an MRI after suffering a hamstring injury against the Miami Dolphins on Sunday, head coach Jay Gruden announced.

The absence of the team's No. 1 receiver likely played a part in the Redskins offense struggling to just 10 points on the day and dropping their season-opening game.

Gruden indicated there's no timeline for Jackson's return.

Safety Duke Ihenacho is also headed for an MRI after suffering what the team diagnosed as a wrist fracture and dislocation.