Freddy Peralta pitched six sharp innings to help Milwaukee beat the Chicago Cubs 4-0 on Sunday, with the Brewers’ lineup breaking through after an injury knocked out left-hander Shota Imanaga in the sixth inning. Milwaukee prevented the Cubs from earning their first road sweep of the Brewers since October 2015. The game was scoreless when Imanaga (3-2) strained his left hamstring while heading toward first base in an unsuccessful attempt to complete a 1-6-3 double play.