Soccer legend Diego Maradona has reassured fans that he is fine after he was treated by doctors during Argentina’s dramatic World Cup win over Nigeria on Tuesday.

Maradona was a huge presence during Argentina’s 2-1 victory in St Petersburg, with pictures showing the 57-year-old celebrating wildly and directing a middle-finger salute at hecklers below following Marcos Rojo’s 86th-minute winner.

Maradona posted a message on his Instagram account in which he said he had a problem with his neck.

“I want to tell everyone that I am fine, that I am not, neither was I interned,” the message read. “In the halftime of the game against Nigeria, my neck hurt a lot and I suffered a decompensation. I was checked by a doctor and he recommended me to go home before the second half, but I wanted to stay because we were risking it all. How could I leave? I send a kiss to everyone, thanks for the support!”

Argentina would have been eliminated with a draw, but the win allowed them to finish second in Group D, and Lionel Messi & Co. will go up against France in the round of 16 on Saturday.

The camera feed, which is controlled by the tournament organizers, quickly cut away. It was the second time this month that middle fingers were shown on camera at the World Cup, after singer Robbie Williams flipped off the cameras while singing in the opening ceremony before the first game.