Yesterday afternoon, the Rays put a claim on Preston Guilmet (and then moved Drew Smyly to the 60-day DL). Guilmet, 27, is a righty that has some pretty filthy minor league numbers and has 15.2 IP in the majors. He's thus far presented himself as a fastball and splitter guy, with a sinker in there for funsies.
He's already been optioned to the minors, but given how Cash has used both the major league bullpen and the available arms in the minors, I imagine we'll see Preston soon.