The Oakland Athletics placed left-hander Brett Anderson on the 10-day disabled list Saturday after he was pulled from Friday's game with a strained shoulder.
Anderson threw one inning and 15 pitches in the 3-1 win over the Toronto Blue Jays.
"It's frustrating," Anderson said. "Even though I gave up a couple of hits in the first, my stuff felt good."
The oft-injured Anderson has dealt with back and elbow injuries before, but never a sore shoulder. "It's one of the few body parts I haven't hurt until today," he said.