The Lions signed Black to a contract Wednesday.
Tight end Kitselman's (leg) season-ending injury warranted a move to IR, leaving a roster spot open for Black. The wide receiver was waived by the Lions on Monday to make room for tight end Nick Muse, but now regains a spot on the roster. Monday's experience should show Black that he is teetering on the edge of making the team, so every snap likely needs to be the wide receiver's best.