It wouldn’t be Cubs camp without some drama, and after a week of relative boredom things got interesting fast on Sunday. Cubs starter Matt Garza grabbed his left side and let out a yelp during his first live batting practice session, and was forced to cut things short. Cubs trainer PJ Mainville walked out to the mound to check on Garza, and the two walked back to the clubhouse. Sveum called the injury a mild lat strain. Garza missed the final two months of 2012 with an elbow problem, and was anxious to get back in action after the long layoff. On the first day of camp, Garza said he was 100 percent, throwing 45 pitches in the bullpen.