"Of course we've got him penciled in for Wednesday," Washington said. "But if we need to use him tonight, we will."
Garza, who has not faced the Indians this season, is 4-5 with a 4.38 ERA in 13 starts for the Rangers since being acquired from the Cubs on July 22.
T.R. Sullivan is a reporter for MLB.com. Read his blog, Postcards from Elysian Fields, and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.