The Marlins have designated corner infielder/outfielder Peter O’Brien for assignment, per a club announcement. His roster spot was needed to make way for righty Zac Gallen, whose promotion is now official.
O’Brien had been on optional assignment for much of the year. To clear an active roster spot, the team optioned hurler Jeff Brigham.
While the Fish entered the year resolved to give O’Brien a shot, he just didn’t hit enough to stay in the big leagues. The 28-year-old carried a 135 wRC+ in a 22-game stint last year but dropped to 45 in his 47 plate appearances in the present campaign. He was slashing a healthier .278/.361/.556 with five home runs in 61 trips to the dish at Triple-A.