J.D. Martinez has no intention of letting up, even though the final few games of the regular season are essentially meaningless to the Arizona Diamondbacks. He wants to be in peak form going into the playoffs. The streaking slugger hit a grand slam and drove in six runs, leading the Diamondbacks and their lineup of regulars to an 11-4 win over the San Francisco Giants on Tuesday night. read more http://www.espn.com/mlb/recap?gameId=370926129