Biting is so last year.
Real and Madrid played out a 0-0 draw at the Vicente Calderon last night, but as usual when big Spanish sides come toe to toe, they kicked the living daylights out of each other.
Fouls, cards, stray elbows, blood, and now it seems a bite.
Mario Mandzukic was in a running battle with the Real Madrid back four all night, and one particular incident in the second half with Dani Carvajal seems to have caught the eye.
After grappling with each other for a few seconds, Carvajal appears to lean his head into the wrist of Mandzukic, before the Croatian striker lashes out in retaliation.
Will we be hearing more about this in the days to come? Judge for yourself…