I think Solis injured his leg after throwing the left hook and right. His right leg looks awkward before Vitali lands and he tries to put weight on it after the punch and slowly falls back. I don't think it was a knockdown from the punch. Also, I thought Vitali was running over to him to tell him to get back up and not to gloat as some people suggested. I think he's obv dissapointed the fashion in which he won and prob thought Solis was taking the easy way out. A genuine injury and a dissapointing victory for Vitali. I wonder if it should have been a no contest??