In Davis' place, J.D. Martinez made his first start since Friday in left field against his former team, the Astros. Davis has hit safely in all but four games this season and is batting .337.
According to Ausmus, the decision had nothing to do with matchups, which makes sense considering Davis is slugging .522 against lefties. Houston southpaw Brad Peacock started Tuesday's game.
"There are going to be times when the guys who get the bulk of the playing time have to rest, not only because they may need it, but because the guys around them -- who are on the bench more -- have to get into the game," Ausmus said.
Jason Beck is a reporter for MLB.com. Read Beck's Blog and follow him on Twitter @beckjason. Matt Slovin is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.