CompuBox takes a historical look at the statistics of unbeaten middleweights Julio Cesar Chavez Jr. and Sebastian Zbik. At Staples Center in Los Angeles, California, Chavez will challenge Zbik for his WBC middleweight title. CompuBox analyzes four fights involving Zbik, and seven fights involving Chavez Jr. Chavez threw 20 more punches per round and landed nearly twice as many as Zbik. Chavez's opponents landed 42% of their power punches, but Zbik has limited power.