Gomez, who had two hits Friday to raise his average to .213, has run into some bad luck this week. He left Wednesday's game in Seattle after getting hit on his right hand by a pitch.
Gomez was also thrown out trying to stretch a double into a triple leading off the ninth inning in Friday night's contest.
"We're not happy with some of the mistakes we've made as a team this month," Hinch said.
Rick Eymer is a contributor to MLB.com based in Oakland. This story was not subject to the approval of Major League Baseball or its clubs.