Mosquera, Marlins prospect, suspended 80 games for positive boldenone test
Eiver Mosquera, a 19-year-old right-hander in the Miami Marlins minor league system, received an 80-game suspension under the minor league drug program for a positive test for boldenone, a performance-enhancing substance. He is the ninth player disciplined for a drug violation this year.
Eiver Mosquera, a 19-year-old right-hander in the Miami Marlins minor league system, was suspended for 80 games under the minor league drug program after testing positive for boldenone, a performance-enhancing substance, per ESPN MLB reporting.
Mosquera had logged three wins and three losses with a 4.50 earned-run average across nine starts and three relief appearances split between the rookie-level Florida Complex League Marlins and Class A Jupiter, according to ESPN. The suspension marks his immediate removal from on-field competition for the remainder of his season.
Mosquera becomes the ninth player disciplined under baseball's minor league drug program this year, per ESPN's reporting. The escalating number of violations this season underscores ongoing compliance scrutiny across the sport's developmental pipeline.
Eiver Mosquera was suspended 80 games for testing positive for boldenone under the minor league drug program.
The 80-game suspension halts Mosquera's 2026 season and marks a significant interruption in his early professional development. The cumulative disciplinary count of nine PED cases in a single year signals sustained enforcement by the league in its minor league system.
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