Mental pressures taking their toll in sport, says McIlroy

The pressure to succeed in sport is pushing more and more athletes towards stress-related illnesses, says Rory McIlroy, who is looking to put a troubled year on and off the course behind him at this week's Australian Open. McIlroy, who slipped from the top of the rankings to world number six after a winless 2013, said the mental toll of sport could far outweigh the physical pressures and cases such as that of England cricketer Jonathan Trott were...