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The headlining prospect in the Marcell Ozuna trade with the Cardinals, Alcantara began the season at Triple-A New Orleans and reached the majors for a June 29 start against the Mets. Armed with an upper-90s fastball that can reach triple digits, Alcantara struggles with control, which hinders the explosiveness of his pure stuff. He also throws a power breaking ball and low-90s changeup. He landed on the 10-day disabled list shortly after his major league start with a right axillary infection, but he should return to the Marlins’ rotation in the near future. Improved command would help his stuff play up.
Acquired in the Dee Gordon trade with the Mariners, Neidert excelled in the Southern League in the first half. Often described as having better command than stuff, Neidert knows how to pitch with a 90-93 mph fastball with movement that he controls to both sides of the plate and a plus changeup that is his best secondary offering. His breaking ball is currently average, but his command, fastball, changeup and feel to pitch give him enough weapons to potentially project as a No. 3 starter in the majors.
Miami acquired the hard-throwing Guzman from the Yankees in the Giancarlo Stanton trade. The 6-foot-2 righthander sits in the high 90s and can reach triple digits. While Guzman’s walk rate is high, opponents struggle to square him up. He complements his fastball with a potentially plus slider and developing 89-91 mph changeup. Improved command and additional refinement of his changeup are Guzman’s two most pressing areas to address.
One of four prospects the Marlins acquired from the Brewers for Christian Yelich, Harrison has struggled in his first taste of Double-A. He showed his trademark power and speed but that was mitigated by a sky-high strikeout rate that bordered on 40 percent. Harrison is one of the most athletic players in the system and has the potential to be a power-speed center fielder. Despite his plus bat speed, Harrison’s swing can get long and he tends to get overaggressive at times.
Ranked as the No. 23 prospect for the 2018 draft, Scott went 13th overall to Miami. A 6-foot-4, 180-pound outfielder, Scott regularly draws comparisons with current Astros outfielder Kyle Tucker, who also attended Plant High. A true plus-plus runner, Scott has a plus arm and should be able to handle either corner outfield spot if he eventually needs to move out of center field. With the potential for above-average power, Scott could impact the game in myriad ways.
Cabrera has some of the best pure stuff in the Marlins’ organization, including an upper-90s fastball that has topped out at 101 mph. He occasionally flashes dominant stuff in the South Atlantic League while also regularly reminding scouts he is still raw. Cabrera pairs an above-average slider with an average but improving changeup to go along with his plus fastball. It will likely take several years for Cabrera to reach his potential, but he has one of the highest ceilings of any Marlins prospect.
Drafted out of North Carolina 36th overall in 2017, Miller is a slight, 6-foot-1 outfielder who has continuously showed a plus hit tool as a professional. A career .321 hitter, he advanced to Double-A in mid-June. At least a plus runner, Miller steals bases efficiently and covers ground in the outfield, where he has rotated between all three positions. His below-average power makes it hard to profile him as an everyday corner outfielder, so center field is his best bet.
The 13th overall pick in 2017, Rogers’ pro career has gotten off to a slow start. The 6-foot-6 lefthander did not throw a professional inning in his draft year because of a forearm strain. After starting 2018 in extended spring training, Rogers made his pro debut in the South Atlantic League on May 22, more than 11 months after he was drafted. After such a long layoff, Rogers’ results have been unsurprisingly rocky, but he still struck out more than a batter per inning with a mid-90s fastball, sharp low-80s slider and upper-80s changeup.
Much like Trevor Rogers, Garrett was a high school lefthander whom the Marlins drafted in the first round (seventh overall in 2016) but did not pitch in his first year in the organization. Garrett had Tommy John surgery last June and is expected to miss the 2018 season. The Marlins hope Garrett’s low-90s fastball, potentially plus curveball and above-average control return to the form that made him such a highly regarded prospect entering the draft.
Devers has done nothing but impress since coming over from the Yankees in the Giancarlo Stanton trade. He was considered a slight, glove-first shortstop when he signed in 2016, but Devers has proven that his hit tool might be more advanced than expected. Devers’ defense has proven legit as well, with some observers considering him a plus defender with a plus arm. Physically maturing and adding strength should be the biggest points of emphasis for Devers, who is already showing the prerequisite tools to man shortstop in the big leagues.
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