A native of Cleveland, Ohio, Merletti leads the team with two interceptions and is tied for third on the team with 36 tackles. He is also a key contributor on special teams. Merletti finishes his Carolina career with 88 tackles and four interceptions.
In 2009, Merletti tore the ACL in his right knee during preseason practice and received a medical redshirt. He earned special teams co-captain honors in 2008 and was one of 11 true freshmen to play in 2007.