Perez (elbow) threw a bullpen session Wednesday in preparation for his next rehabilitation start Saturday for Double-A Frisco, T.R. Sullivan of MLB.com reports.
Following the session, Perez sounded optimistic and feels he's close to returning. The left-hander made his first rehab start for Low-A Hickory on Monday and allowed only two hits while striking out nine over five scoreless innings. The Rangers will likely have him make a couple more rehab starts to build his pitch count up and face more advanced hitters.