Alzolay, who made his MLB debut earlier this season, was removed from a game against the Oklahoma City Dodgers on Wednesday. On Friday, the team announced that the hurler has been diagnosed with right biceps inflammation, and a timetable for his return is unknown.
In three total appearances with the Cubs, Alzolay posted a 1-1 record with a 7.15 ERA, giving up nine earned runs and four home runs in 11.1 innings of work.
He has a 5.48 ERA in 10 starts at the minor league level this season. He is currently the Cubs’ fourth-rated prospect, according to MLB Pipeline.
Alzolay’s 2018 season was also cut short due to injury, as he was diagnosed with a lat strain on May 29 of last season. The injury likely cost him a chance at making his big league debut a season ago, and his biceps injury is yet another speedbump on his way to a full-time role with the club.