The Birds also brought in right-hander Matt Buschmann from the Reds' system. Buschmann, 31, was 8-10 in 22 starts in the Minors this season. He'll be assigned to Triple-A Norfolk.
"With the injuries we've had and some of the callups, basically we acquired some people to get through the season, and maybe get lucky with them," manager Buck Showalter said. "Both of them are pretty good pitchers. We have to make sure we keep our depth down there."
Buschmann, selected by the Padres in the 15th round of the 2006 Draft out of Vanderbilt University, is 84-69 with a 4.