It is therefore little surprise that two champions, who have dominated their respective sports for much of recent memory, have forged a friendship based on understanding how lonely being the best can be.

In golf, Tiger Woods has been there and done it all. The king of the greens, he is so vastly superior to most other players on the golfing circuit that few bother to even imagine success against him.

In tennis, Roger Federer has very nearly – with the exception of the French Open, which proves elusive – been there and done it all. The king of grass, he plays with the grace of a ballet dancer and many opponents know they have lost before the first ball has even been served.

Woods and Federer have become close friends, these two giants of their own sports. The two were brought together by Nike, who saw the potential of these two living sporting legends and united them for an ad campaign. They have since starred, together with footballer Thierry Henry, in advertisements for razor brand Gillette alongside their Nike commitments. Before the 2007 Wimbledon final – in which Federer played his tennis arch-rival Rafael Nadal – Woods recorded a video message for Federer, via Nike, encouraging his friends to win his fifth title. Both men confess to a friendly rivalry as to who can win the most majors in their respective sports; currently, Woods holds the record at 14, with Federer on 13.

Their friendship has extended beyond the advertising suite. In 2006, Woods was photographed supporting Federer from Federer’s own players’ box as he bid for the US Open title. Both have also openly talked of their friendship in interviews and how it has helped them; citing that only each other, out of everyone on the planet, can really understand the position they are in.

Latest news show that Tiger Woods has been defeated at the PGA Championship at Hazeltine. He seems to be human, after all.

From an early age it was clear that Tiger Woods was a phenomenon. At the age of two – yes, as a baby – he appeared on American television showing his adeptness at putting and a year later he played nine holes at California’s Navy Golf Club, making his way around in 48 shots. Now if you don’t know much about golf, take it as fact that that is amazing. Many adult amateurs would dream of shooting 48 for a nine-hole round. To do it at the age of three is incredible.

Tiger Woods turned professional at the age of twenty – not especially remarkable in this day and age, but certainly one of the younger players ever to do so. By the time he had turned professional he was already marked out as one of the most exciting prospects the game had ever seen – in fact, probably undeniably the most exciting. There was no doubt that in terms of coverage, he gained some extra attention for being of mixed race. Lots of Tiger Woods pictures invaded the net, taken by paparazzi who make a living out of spying on people’s life and home. But the coverage was far more than anything due to the fact that he just kept winning.

As things stand, with Woods just back in the game after eight months out following surgery on his left knee, he remains the top-ranked golfer on the PGA Tour. Despite the injury – with which he played the entire US Open in 2008, and won – Woods’ place was untouched, and at the age of 33 he has spent 536 weeks (more than ten years) at the top of the world rankings. That is more than the three next most successful men in the rankings put together. Those three men? Greg Norman, Nick Faldo and Seve Ballesteros. I bet that Tiger’s wife must be so proud of her husband and family.