Brewers right-hander Ben Sheets underwent a magnetic resonance imaging test Thursday in Milwaukee and was found to have a mild strain of the left hamstring.

Sheets, who left the mound after one inning Tuesday night in Houston, will rejoin the team in Atlanta and be evaluated daily.

His status for his scheduled start Sunday against the Braves is questionable. The Brewers were counting on Sheets making two more starts -- Sunday and next Friday -- in their effort to overtake Chicago in the National League Central.