Per Mike Garafolo of NFL Media, the Lions have agreed to terms with cornerback Rock Ya-Sin. Ya-Sin spent last season with the 49ers, mainly playing special teams. He appeared in 13 contests for the club,

The Detroit Lions are fortifying their depth at cornerback by agreeing to terms with veteran Rock Ya-Sin, according to NFL Network on Thursday.

Last season, former Detroit Lions cornerback Kindle Vildor quietly had a productive season in a reserve role in Aaron Glenn's defense. The veteran defensive back departed Detroit this offseason, after signing with the Tampa Bay Buccaneers following two seasons in Motown.