Guerrero's uncle Vladimir Sr. made nine big league all-star teams, while his uncle Wilton spent parts of eight years in the majors and also served as his trainer. His older brother Jose pitches in the Mets system, while his cousin Vladimir Jr. ranks as the Blue Jays' No. 1 prospect. As such, it's fair to say baseball flows in the blood of Gregory Guerrero, who signed for $1.5 million in 2015. While he hit an empty .247 in his 2016 pro debut in the Dominican Summer League, Guerrero uses a loose, athletic swing that Mets officials compare with Amed Rosario. He tends to swing uphill and needs to do a better job slowing the game down to reach his ceiling as an above-average hitter with average power. Projected to move to third base eventually, Guerrero held his own at shortstop in 2016 by showing sound footwork and a plus arm. He doesn't run well and probably will outgrow the position, which ups the ante on his power production. Guerrero should be ready to tackle an assignment in a domestic short-season league in 2017, quite possibly in the Rookie-level Gulf Coast League.
A second-generation member of the Guerrero baseball dynasty, Gregory signed with the Mets in July 2015 for $1.5 million, the club's largest expenditure during the international signing period. His older brother Jose pitches in the Mets system, while his cousins are outfield prospects Gabby Guerrero (Diamondbacks) and Vladimir Guerrero Jr. (Blue Jays). Gregory's uncle Vladimir Sr. made nine big league all-star teams, while uncle Wilton spent parts of eight years in the majors as a utilityman and also served as Gregory's trainer. Guerrero's hitting ability and natural feel for the game give him a higher floor than most 16-year-old international prospects. He combines quick wrists, a loose, whippy swing and a mature hitting approach to profile as at least an average hitter, with some scouts projecting his bat to plus. His swing is geared for line drives, and he doesn't possess the loft in his swing at present to hit for more than gap power. Guerrero is a below-average runner who might outgrow shortstop, but he has strong defensive fundamentals and probably will have the range to handle second base and the plus arm for third base. Guerrero's polished plate approach makes him a good candidate to begin his pro career at one of the Mets' Rookie-level affiliates in 2016, either in the Gulf Coast League or at Kingsport.
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