Ryan Garton

A 1.53 ERA and 0.51 WHIP in 13 appearances over the season's final month weren't enough for Garton to maintain his spot on the Mariners' 40-man as the team outrighted him in late October. Garton struggled during his brief time with the Rays prior to the trade, but his numbers over a larger body of work at the Triple-A level were impressive (2.80 ERA, 1.18 WHIP, 61:24 K:BB in 45 innings). The right-hander doesn't throw especially hard (92.5 mph average fastball velocity), but he features two swing-and-miss secondary pitches in his cutter and curveball -- both pitches had whiff rates close to 30 percent last year. While he's now off the roster, Garton figures to get the call up at some point in 2018 when the Mariners inevitably need bullpen reinforcements. Just don't expect him to crack the back end which now includes Juan Nicasio in addition to Nick Vincent, David Phelps and Edwin Diaz.