SAO PAULO, BRAZIL - JULY 09: Javier Mascherano of Argentina tackles Arjen Robben of the Netherlands as he attempts a shot against goalkeeper Sergio Romero during the 2014 FIFA World Cup Brazil Semi Final match between the Netherlands and Argentina at Arena de Sao Paulo on July 9, 2014 in Sao Paulo, Brazil. (Photo by Julian Finney/Getty Images)

Think Neymar's fractured vertebra is the worst injury of the World Cup? Think again. His busted back has been overshadowed by a real a**hole.

Literally, as in, a torn anus, suffered by Argentina's Javier Mascherano during Wednesday's victory over the Netherlands.

Mascherano sustained the gruesome injury at the tail end of regulation play, when he stretched to block a potentially game-ending shot on goal by Dutch player Arjen Robben:

"I thought I had slipped, I thought I wouldn’t make it, but I tore my anus on that move, the pain ... it was terrible," Mascherano said in a post-game interview translated by The Independent. "I threw myself into it. I could have been sent off. It could have been a penalty but anyone could have done that, I had the luck to get there."