Source: Steelers likely to release S Mitchell

PITTSBURGH -- Safety Mike Mitchell's four-year run with the Pittsburgh Steelers might be up. The Steelers are likely to release Mitchell because of his $8.1 million cap charge but are interested in him returning on a new deal, according to a source. Releasing Mitchell should save the Steelers around $5 million in cap space, which is necessary for a team that enters the weekend with $1.022 million in space.

A Mitchell departure opens the door for J.J. Wilcox, whom the Steelers recently told they have interest in bringing back, according to a source. The safety acquired from Tampa Bay in a trade last year should be in the mix for playing time, though the Steelers would save $3.125 million in…