ASHBURN, Va. (AP) Redskins wide receiver DeSean Jackson could miss 3 to 4 weeks with a strained left hamstring.

Jackson was injured on the first play of Washington's second possession against Miami Sunday. He was trying to catch Kirk Cousins' deep throw to the right sideline.

Coach Jay Gruden said Monday that Jackson's absence ''could be shorter,'' but that recovery times from hamstring issues are tough to predict.

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Jackson led the Redskins with 1,169 yards receiving and six touchdowns last season.

Jackson missed Washington's preseason games this year because of a shoulder injury.

Gruden also said that the Redskins have released kicker Kai Forbath and signed kicker Dustin Hopkins.

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