Cincinnati Reds second baseman Scooter Gennett, who made his season debut last week, exited Wednesday's game against the Milwaukee Brewers after the fourth inning with tightness in his left groin.
He could return the lineup Thursday for the finale of the series with the Brewers.
"He had a little bit of tightness," Reds manager David Bell said. "Not in the groin he injured but the other one, which I was relieved to hear. We got him out of there to play it safe. We'll see (Thursday). You don't know if it is compensation. There was just a hint of tightness, so we played it safe.