The Washington Redskins signed seventh-round draft pick Rob Jackson. Jackson, a defensive end, was the 242nd overall selection in April and made 61 tackles and 6.5 sacks in two seasons at Kansas State.

The Redskins have signed four of their 10 draft picks. Earlier, they signed fourth-round draft pick cornerback Justin Tryon; sixth-round safety Kareem Moore; and seventh-round safety Chris Horton.

To make room for Jackson on the roster, the Redskins released defensive tackle J.T. Mapu, who was signed as an undrafted free agent last month.

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