Outspoken Reds pitcher Trevor Bauer is barbing Rob Manfred, tweeting that the MLB commissioner "is trying to ruin baseball at all levels."
Bauer sent a series of tweets during the weekend, starting with a jab about Major League Baseball's threat to cut ties with minor league affiliates.
Bauer followed up with: "At least Rob Manfred is trying to ruin baseball at all levels and isn't discriminating. Something to be said for consistency, I guess."
MLB had no immediate comment to Bauer's remarks.
At the recent winter meetings, Manfred said MLB was pushing ahead with a rules change for 2020 that requires pitchers to face at least three batters or finish a half-inning.
Bauer, 29 next month, was a combined 11-13 with Cleveland and Cincinnati last season. He was traded to the Reds in July, three days after throwing a ball from behind the mound over the center-field wall in Kansas City when he was pulled from a game.
Bauer called the act "childish" and was fined by MLB.
Known for his quirks as well as his talent, Bauer had a start in the 2016 playoffs pushed back after he cut a finger on the propeller of his drone.
