The Athletics placed outfielder Travis Buck on the 15-day disabled list on Thursday because of a strained right oblique. The move is retroactive to April 21, meaning the soonest he can return is May 6.
Buck - who's been getting time in left field to fill in for the injured Coco Crisp - is 7-32 on the season with a home run. A talented gap hitter capable of drawing a walk, Buck hasn't been able to build off of his solid rookie campaign in 2007, as injuries to his hand, hamstring, shin, elbow, head, and oblique have derailed his progress. This is the second straight year he's gone on the DL with an oblique strain, although this time he injured a different side.
Crisp is nearing a return from a fractured pinkie, but as he's not ready yet, the A's have called up Matt Carson from AAA to take Buck's place. Carson, 28, is a reserve-level player, but for the time being he could end up getting some action ahead of backup Gabe Gross. Outfielder Jai Miller was designated for assignment to make room for Carson on the 40-man roster.