Mark it down -- Zimmerman will set career-highs in batting average, home runs and RBIs this season. That way, when he does it, you'll be able to post a comment on this post thanking me for the advice. I'm just kidding, but the 23-year-old third baseman is headed for big numbers. In his rookie season, Zimmerman hit .287 with 110 RBIs. Last year, he hit 24 home runs. This season, I think Zimmerman is going to have around a .290 batting average with 25-35 home runs and 120-130 RBIs. As Walker said, it's only going to get better for Zimmerman because he is gaining major-league experience at a time when most players are still riding buses in the minors.