Sweeney left Tuesday game against the Reds with a left hamstring issue, Gordon Wittenmyer of the Chicago Sun-Times reports. Sweeney grounded out to short in his first at-bat of the game and was replaced in right field by Matt Szczur to begin the bottom of the second inning. The 29-year-old Sweeney missed more than a month earlier this season with an injury to his right hamstring.