Pat Light

Light can hit 100 mph on the radar gun, which has resulted in high strikeout rates, but he's struggled with control throughout his time as a minor leaguer. He improved at Boston's Triple-A Pawtucket last year with a 2.32 ERA and went 7-for-7 in save chances, though he fought through a 4.9 BB/9. Minnesota traded for him in late July in their continued quest to seek out high-velocity relievers. Light struggled in the majors, however, with a 9.6 BB/9 in 16.2 innings. After being traded to the Pirates over the offseason, he'll likely spend much of 2017 at Triple-A Indianapolis until he improves his control, but Light's electric arm gives him enough promise to keep him in the mix for a major league bullpen role.