Silva is a 6-foot-3, 225-pounder who transferred to Hampton after starting his career at Bowie State. He was an all-conference selection in college.
Silva began his career with the Detroit Lions and joined the Panthers earlier this month and is listed fourth on the depth chart.
He started six games for the Lions last season and recorded 37 tackles, one interception, three pass deflections and one fumble recovery.
Wells is a 6-foot-4, 325-pounder from St. Augustine's (North Carolina). He was originally signed by the Panthers last season.
Listed third on the Panthers' depth chart, Wells was a first-team all-conference selection in college who played in two all-star games: the Dixie Gridiron Classic and HBCU Classic