Michael Lahoud & Charlie Davies are pleased to be joined by CBS Sports Rules Expert Christina Unkel to discuss some of the controversy that occured in this weekend's big matches. Arsenal's match vs. Manchester United in the FA Cup had multiple decisions made by officials worth talking about, such as Gabriel Martinelli's offside, Diogo Dalot's 2nd yellow card, and the Kai Havertz penalty decision. Also, Christina and the crew touch on Real Madrid's recent match vs. Barcelona in the Supercopa de España , as well as the differences between refereeing with and without VAR assistance.