While there is the slim possibility that Samu could recover before the World Cup gets underway on June 11, it's far more likely that he faces an extended period of around a year out of action, which would obviously rule him out of Spain's plans for the summer tournament. The 21-year-old has 47 goals in 77 appearances for Porto and, while he may not have been a starter, would have been a useful asset for La Roja in North America.