Chicago Cubs first baseman Anthony Rizzo will sit out Sunday's game against the Milwaukee Brewers becuase of back tightness, according to Teddy Greenstein of the Chicago Tribune.
"He came in and tried to get loosened up, but it wasn't working as well as he wanted to," manager Joe Maddon said. "So we'll get him ready for a possible cameo pinch hit."
If he is unable to come in as a reserve, it will be the first game he has missed this season.
Rizzo missed time last season when he was placed on the 10-day disabled list in April with a back injury.