Before his departure, Callaspo collected two doubles in as many at-bats off Reds righty Homer Bailey, not only marking his first hits in an A's uniform, but also snapping an 0-for-18 streak.
"I'm just trying to do my job," Callaspo said.
"It was great," said Josh Donaldson of Callaspo's offensive showing. "Playing against him for the last couple years, he's one of those guys that grinds on you, battles you, and if you make a mistake, he has the chance to leave the yard. For him to get rolling, hopefully that's going to help our team."
Jane Lee is a reporter for MLB.com. Read her blog, Major Lee-ague, and follow her on Twitter @JaneMLB. This story was not subject to the approval of Major League Baseball or its clubs.