CM Punk Takes a Jab at Injured Dominik Mysterio Before RAW

CM Punk is taking aim at the injured Dominik Mysterio, who's missing RAW in Philadelphia. The World Heavyweight Champion called him an idiot on Instagram while signing trading cards. Last week, Punk's title defense against AJ Styles ended in a disqualification due to Finn Balor's interference. Meanwhile, Bron Breakker is singing Punk's praises, calling him the best promo in wrestling history.