Sam McWilliams

An eighth round pick in the 2014 draft, McWilliams bounced through three organizations over his first seven seasons as a pro, but as yet he hasn't received a big-league call-up or even had much success above Double-A. The 25-year-old right-hander was part of the Rays' 60-man roster last year though and even saw time on the taxi squad, and the Mets' scouts liked him enough that they signed him to a one-year major-league deal this offseason. At 6-foot-7, McWilliams fires his mid-90s fastball from an imposing angle that gives hitters difficulty when he's able to locate it, and he adds a slider that flashes plus and a work-in-progress changeup. With Marcus Stroman back in the fold and Carlos Carrasco coming over from Cleveland, rotation depth is less of a need for the Mets than it was when McWilliams signed in November, but he could still get a look in the bullpen if he shines in the spring.