Acquired from the Angels at the 2015 trade deadline for David DeJesus, Lopez is a stocky righty with a plus fastball and the potential for a plus curve. The fastball sits plus at present with downhill plane and slight cutting action. He's capable of holding velocity into the later innings, though he struggles to command the pitch. There's room to add velocity in shorter stints. The curve shows plus with sharp, two-plane break. He generates chases below the zone, but does not consistently locate the pitch in-zone. The change is seldom used, with little separation from his fastball at present and sinker-like fading action. The fastball-curve mix should play well out of a bullpen; changeup development that is unlikely to progress to average utility makes that his likely landing spot.