Cooper viewed the day games at Wrigley Field as the perfect opportunity to rest his two veteran infielders, neither of whom had the luxury of resting during the All-Star break.
"Tejada gets a day off, and I think a deserved day off," said Cooper, who rested Berkman on Tuesday. "I'm sure he wasn't happy, but you've got to do it."
Cooper originally planned to start Mark Loretta at shortstop in Tejada's absence, but he decided instead to go with Geoff Blum, who had two hits on Tuesday, including a home run.
"Blum deserves an opportunity to swing it again today, after the way he swung it yesterday," Cooper said.
Plus, Loretta still hasn't fully recovered from the bruised thigh he suffered during his double slide with Hunter Pence on Saturday.
"It's getting better," Loretta said. "Probably 75 percent."
Alyson Footer is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.