"For those who love football and know football, it's bad news," said Sabella, shortly after his side's 1-0 victory over Belgium in the quarter-finals yesterday.
"I love great players. For people like me, Brazil losing a player like him is me losing the possibility of watching him again.
"It's a catastrophe, nothing more, nothing less. There's nothing worse than getting injured at a World Cup when your dream of lifting the trophy is still alive. The only thing I can do is wish him a quick recovery."
Argentina's victory against Belgium in Brasilia means that they remain on course to face hosts Brazil in the final on July 13.