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Seattle Mariners Call Up Top Outfield Prospect Jonatan Clase

 Matt Tallarini  |    Apr 15th, 2024 2:00pm EDT

(Photo by Mark Cunningham/MLB Photos via Getty Images)

According to ESPN’s Kiley McDaniel, the Seattle Mariners called up No. 10 ranked outfield prospect Jonatan Clase on April 14.

Clase, 21, was born in Santo Domingo, Dominican Republic, and has played five seasons in the minor leagues with Seattle from 2017-24. He was selected to the American League Futures Team during the 2023 All-Star Break in Seattle and has been a MiLB.com Organization All-Star in 2022 and 2023.

He signed a minor league contract with the Mariners as an international free agent on July 2, 2018, and was assigned to the Dominican Summer League complex on May 31, 2019.

Clase started the 2024 season with Triple-A Tacoma and played in 12 games, batting .311 with 53 plate appearances. He had 14 hits, four doubles, two triples, two home runs, 11 RBI, three stolen bases, seven walks, and 12 strikeouts before being promoted.

During spring training, Clase batted .321, playing in 15 games with 29 plate appearances, recording nine hits, two doubles, two RBI, three stolen bases, and ten strikeouts.

This past winter league season, Clase played in 16 games in LIDOM with the Toros del Este and batted .100 with 45 plate appearances and ripped four hits, one triple, four RBI, two stolen bases, four walks, and 12 strikeouts.

Last season, Clase split his time between High-A Everett and Double-A Arkansas. He played in 21 games with High-A Everett and batted .333 with 106 plate appearances, smacking 29 hits, nine doubles, one triple, seven home runs, 17 RBI, swiping 17 bases, 18 walks, and 28 strikeouts before he was assigned to Double-A Arkansas on May 3, 2023.

With Arkansas, Clase played in 108 games and hit .222 with 489 plate appearances, ripping 92 hits, 19 doubles, seven triples, 13 home runs, 51 RBI, 62 stolen bases and being caught only 11 times, 64 walks, 137 strikeouts, and a .727 OPS.

Clase is the first player in the minors to have a 20-70 season since the minor leagues began tracking these stats in 1961.

During his five seasons in the minors, Clase has played in 325 games with a lifetime average of .264 in 1,489 plate appearances, recording 327 hits, 67 doubles, 28 triples, 39 home runs, 160 RBI, 184 stolen bases, 211 walks, 381 strikeouts, and a .833 OPS.

During his five seasons in the minors, Clase played in 301 games and started in 296 in center field, pitching 2,582 innings with 693 chances, 662 putouts, 18 assists, 13 errors, four double plays, and a .981 fielding percentage.