Tiger Woods has admitted he plays mind games with son Charlie as he bids to prepare the nine-year-old for professional golf.
The 15-timer major champion, who burst into the scene when he won the US Masters at Augusta in 1997, has made no secret of the impact his own father, Earl, had on him as he came through the junior ranks. And in one famous Tiger Woods Nike commercial, Earl narrated with the words: "You don't really instil anything in a child, you encourage the development of it, but I would do all kinds of things to mess him up."
That tactic was designed to test his son mentally, and ready him for the psychological pressures that come with playing elite level golf. Indeed, the steely focus of Woods became one of his most admired attributions as he dominated the sport at the turn of the century.