Soler was the eighth Cubs player to make his debut this season. Soler started in right field Wednesday and batted fifth. Soler was pulled from the Iowa Cubs' game in Tacoma on Monday night after hitting a three-run home run, his eighth of the season. "The key to the decision on Soler was the fact that he was going to be a September callup for us mainly because he needs the at-bats," Cubs president of baseball operations Theo Epstein said Wednesday. After Luis Valbuena led off Chicago's second inning with a home run, Soler stepped in for his first career at-bat and hammered Mat Latos' 2-1 fastball 423-feet to center field, making it back-to-back jacks for the Cubs. Chicago Cubs first baseman Anthony Rizzo is not in the starting lineup on Wednesday after leaving Tuesday night's game with a back issue. The Cubs haven't yet announced the call-up, but it's being reported by CSN Chicago, the Chicago Tribune, MLB.com and Minor League Baseball.