Major League Baseball management has fired Shyam Das, the arbitrator who ruled in favor of Milwaukee Brewers leftfielder Ryan Braun in his appeal of a positive drug test.

The dismissal, first reported by The Associated Press, was further evidence that management thought Das erred in his ruling on Braun, whose successful appeal averted a 50-game suspension at the outset of the 2012 season. Both management and the players union have the right to dismiss an arbitrator upon written notice without approval from the other side.

Das ruled in Braun's favor in late February, basing his decision primarily on a chain-of-custody issue. In the hearing of Braun's appeal, his side called into question why the collector waited two days to ship the urine specimen to a lab in Montreal and whether it might have been tainted in the process.