Dusty Baker is trying to ensure that Aroldis Chapman won't be doing any more somersaults on the field. Chapman did a pair of forward rolls after striking out Martin Maldonado to complete a 4-3 win over the Brewers on Tuesday night. "It's been addressed already and it's over," Baker said on Wednesday. "It won't happen again - ever. I know he's happy and things have been going poorly for him, but he's got to demonstrate in a different way." Chapman, who speaks through a translator, declined to discuss it.