Everton starlet Dan Gosling faces up to nine months on the sidelines with a serious knee injury.
The Toffees have confirmed that young midfielder Gosling ruptured his cruciate ligament in last weekend's goalless draw with Wolves.
The England Under-21 star sustained the injury in a collision with Wolves goalkeeper Marcus Hahnemann in the closing stages at Molineux.
"Our worst fears have been confirmed," Everton physio Mick Rathbone told the club's official website. "Dan has ruptured his cruciate ligament and will unfortunately be out for up to nine months."
Everton boss David Moyes admitted he was sorry to lose Gosling for such a lengthy period with the midfielder ruled out until well into next season.
"I'm really disappointed for Dan," said Moyes. "He's been making great progress here at Everton and we look forward to having him back as soon as possible."