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Scouts lauded Gimenez for his high baseball IQ when he was an amateur in Venezuela, and those forecasts have proven accurate in pro ball. He quickly acclimated to the low Class A South Atlantic League as an 18-year-old in 2017 and has upped his game in the Florida State League this season. Gimenez packs a punch at the plate thanks to his bat speed and selective, high-contact approach that profiles at the top of the order. Despite ordinary speed, he has racked up high stolen base totals this year with improved ability to read pitchers and game situations. Gimenez plays a strong fundamental shortstop but might be destined for second base down the line.
Alonso combines elite exit velocities with strong plate discipline to produce huge righthanded power. The 2016 second-rounder has done nothing but mash since turning pro and has hit his way to Triple-A in short order. Alonso profiles as a middle-of-the-order masher and below-average defensive first baseman who will supply substantial value with his bat.
The Mets chose Kelenic sixth overall in June, making him the first high school batter selected in 2018 and also the highest prep drafted from Wisconsin in draft history. He moved quickly from the Gulf Coast League to the Appalachian League in his pro debut, showing the necessary work ethic and drive to go with outstanding tools. Kellenic’s smooth lefthanded swing portends above-average—and possibly plus—hitting ability and power, and he backs that with above-average range and arm strength in center field.
Peterson has physicality at 6-foot-6, three pitches and control. What the 2017 first-rounder out of Oregon didn’t have coming into the year was experience. An ingrown toenail curtailed his pro debut last year and then a tweaked knee delayed his start this season. When Peterson returned, he quickly advanced to the Florida State League with his low-90s fastball, solid-average slider and average changeup. He gets results because of the angle on his pitches and ability to keep the ball on the ground.
The 19th overall pick in 2016, Dunn ran up a 5.00 ERA in the Florida State League a year ago, but the lightning-armed, athletic righty had improved dramatically this season. Dunn shows feel for three pitches and throws from an effortless delivery, making his 93-94 mph fastball and hard-breaking slider play up. Improved fastball command and manipulation as well as enhanced feel for his changeup have made him tougher on lefthanders and more effective overall.
A first-round pick in 2016 out of Connecticut, Kay had Tommy John surgery after signing, which delayed his pro debut until this season. Once healthy, the hard-nosed southpaw advanced quickly to the Florida State League thanks to a 93-94 mph fastball that touches 96 and an elite spin-rate curveball. Kay also throws a quality changeup. Developing his curve as a swing-and-miss pitch could make him a No. 3 starter.
One of the top prospects on the international market in 2017, Mauricio has handled an assignment to domestic Rookie ball this year, showing plus bat speed and plus athleticism in the Gulf Coast League. The ball comes off his bat with authority because of exceptional hand speed and a swing that stays on plane through the hitting zone. Mauricio’s plus arm and body control will keep him at shortstop as he advances.
Szapucki has carved up minor league competition with bat-missing stuff that opponents struggle to square up or lift. He reached low Class A Columbia in 2017 before his progress was put on hold by Tommy John surgery in July. When healthy, Szapucki throws an electric fastball/curveball combo that ranks as the best in the system. He could return to the mound in instructional league.
Drafted as a shortstop in the second round last year, Vientos has shifted to third base in the Appalachian League, but he has the power and overall hitting profile to weather the move. With fast hands, a projectable frame and the ability to loft the ball, he should develop above-average power. Vientos, who was one of the youngest players in his draft class, needs to clean up his plate approach and defensive fundamentals at his new position, but he’s well on his way.
The 2012 first-rounder didn’t hit much last year, but he got off to a fast start in the Pacific Coast League this year thanks to an improved swing plane and softer front-foot landing. Unfortunately, Cecchini suffered a foot injury on May 9 after being hit by a pitch, costing him a shot at a callup. (The Mets instead called on Luis Guillorme and Ty Kelly as backup infielders.) Cecchini lacks a carrying tool outside of his bat-to-ball skills, but he’s a well-rounded, big league-ready player who can do a little of everything, including play all infield positions.
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