Atletico Madrid have struggled against AC Milan, but they're in control of their Champions League tie after Diego Costa's headed goal. The Rossoneri had been well on top, keeping Atleti from challenging their goal, but an unlucky deflection off a corner kick led to this goal.
This is so unlucky for Ignazio Abate. The ball basically just hit him in the face, and it turned into a perfect setup for Diego Costa. The Atleti striker now has four goals in Champions League