Mario Balotelli missed a penalty for the first time in his career as AC Milan slumped to a 2-1 defeat at home to Serie A joint leader Napoli on Sunday.

In a typically eventful performance, "Super Mario" was also booked, hit the crossbar, had another penalty appeal turned down, brought the game to life with a brilliant stoppage time goal and got sent off for arguing after the final whistle.

Balotelli, who had converted all 21 of his previous penalties in official matches, watched his run come to an end when Napoli goalkeeper Pepe Reina dived low to his right to block his shot in the 61st minute.