Everton have suffered a major blow less than one week before the start of the new Premier League season with the news that teenage striker James Vaughan is sidelined for at least four months.
The 19-year-old has had to have an operation after suffering a dislocated shoulder in last month's pre-season friendly against Preston North End.
Head physio Mick Rathbone confirmed to the club's official website: "James dislocated his shoulder which is a nasty injury in a professional sportsman and it always needs repairing.
"He has been to the specialist today (Sunday) and things are going tremendously well but we are looking at an estimated time of four months, certainly no less."
Injuries have restricted Vaughan to only seven first-team starts for Everton since he burst on to the scene as a 16-year-old by scoring on his Premier League debut against Crystal Palace.