The Athletics traded for Scott Sizemore because they needed help at third base and he has a nice on-base percentage. Any power hitting was purely a bonus. Conor Jackson and Sizemore each hit a two-run homer and newly chosen All-Star Gio Gonzalez struck out seven to lead Oakland past the Arizona Diamondbacks 7-2 Sunday. Read more: http://scores.espn.go.com/mlb/recap?gameId=310703111&teams=arizona-diamondbacks-vs-oakland-athletics