Jets sign seventh-round S Allen

The Jets signed former South Carolina safety Antonio Allen to a four-year contract, a league source said Thursday. The deal is for about $2.1 million, including a $45,896 signing bonus.

After a productive college career, Allen surprisingly slipped to the seventh round. He recorded a team-high 88 tackles last season, including 9.5 for a loss and one sack. He's expected to compete for a backup safety position.

The Jets still have three unsigned picks in their eight-man draft class -- DE Quinton Coples, LB Demario Davis and WR Jordan White. All are believed to be close to deals.