The Jaguars signed CB Ashton Youboty and DE George Selvie to the active roster on Tuesday.
Youboty, a sixth-year veteran, spent the last five seasons with the Bills. He played in 13 games in 2010. Youboty has seven career passes defensed.
Selvie is a second-year pro out of South Florida. He played in all 16 games with the Rams last season and recorded 1½ sacks. He played in four games for Carolina this season before being cut on Oct. 5.
The Jaguars lost CB Rashean Mathis to injured reserve on Monday.