Arizona Diamondbacks' Ryan Roberts celebrates his first-inning grand slam against the Milwaukee Brewers in Game 4 of baseball's National League division series Wednesday, Oct. 5, 2011, in Phoenix. (AP Photo/Ross D. Franklin)

Photo by: Ross D. Franklin

Arizona Diamondbacks' Ryan Roberts celebrates his first-inning grand slam against the Milwaukee Brewers in Game 4 of baseball's National League division series Wednesday, Oct. 5, 2011, in Phoenix. (AP Photo/Ross D. Franklin)