Aerts was injured in the 23rd minute of his side's 4-1 defeat in Amsterdam and has already undergone surgery to repair the broken fibula and torn ankle ligaments.

"I was in terrible pain," Aerts told Brabants Dagblad newspaper.

"I heard something cracking and I knew something was wrong. When I looked down, my shin guard was in the right place but my foot dangled under it.

"It was unbelievable. I almost never have muscle injuries but when I do get injured, it's always serious.

"I can forget the rest of this season, but that's life."

Aerts will be replaced for the remainder of the campaign by reserve keeper Kenneth Vermeer.