Madrid - The Champions League battle of Madrid left Atletico striker Mario Mandzukic with a bloodied face and controversy over whether he was bitten by Real defender Dani Carvajal.
Carvajal strongly denied even trying to bite the Croatian striker. But he could still face action for landing a punch at Mandzukic that the referee did not see.
Madrid newspapers speculated that the 23 year-old Spanish international could be suspended for next week's return match in their Champions League quarter final.