Ji-Man Choi, a Triple-A first baseman in the Mariners’ farm system, has been suspended 50 games after testing positive for the performance-enhancing drug methandienone.
Most minor leaguers who get 50-game suspensions are non-prospects, but Choi got off to a great start at Triple-A this season as a 23-year-old and has put up huge career numbers. He’s definitely a solid prospect with some long-term upside.
Last season he hit .295 with 18 homers and a .929 OPS in 122 games split among three different levels and for his career Choi is a .312 hitter with a .414 on-base percentage and .512 slugging percentage.
The Dodgers announced that pitching prospect Walker Buehler will be called up to start on Monday against the Marlins. Rich Hill went on the 10-day disabled list with a cracked fingernail, so Buehler will serve as a fill-in while the lefty is out, likely for just one start.
Buehler, a 23-year-old right-hander, made his major league debut last September, making eight relief appearances. He struggled, yielding eight runs on 11 hits and eight walks with 12 strikeouts in 9 1/3 innings. He was off to a good start to his 2018 season at Triple-A Oklahoma City, owning a 2.08 ERA with 16 strikeouts and four walks in 13 innings.
Monday will be Buehler’s first major league start. He is the Dodgers’ No. 1 prospect and No. 12 overall in baseball according to MLB Pipeline.