Cowboys sign Ken Bishop

IRVING, Texas -- The Dallas Cowboys have deals with all five seventh-round picks, with defensive tackle Ken Bishop signing a four-year deal on Tuesday.

Bishop, who was the 251st pick, joins Ben Gardner, Will Smith, Ahmad Dixon and Terrance Mitchell as the signed draft picks. The Cowboys still have to sign their top four picks: Zack Martin, DeMarcus Lawrence, Anthony Hitchens and Devin Street.

Bishop was a first-team All-MAC pick after posting 70 tackles and seven tackles for loss as a senior at Northern Illinois. He also intercepted two passes and broke up one. In two seasons, he had 125 tackles, 16.5 for loss and 3.5 sacks.