He was struck on the side of the head by a line drive off the bat of Salt Lake City's Freddy Sandoval and went down on the mound, but he got up quickly and walked off under his own power. The ball caromed to second base.
The injury occurred with two outs in the third inning and only 27 pitches into his start, with Schmidt having allowed a two-run homer, one of five hits.
Schmidt is on the comeback trail after two shoulder operations. He has not pitched in a Major League game since June 2007.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.