In tennis, at Wimbledon, we saw last year’s champion, Andy Murray, and the world’s number one seed, Rafael Nadal, exit the competition – both beaten by younger rising stars of the game. In the women’s competition, we also saw the departure of Serena Williams, Maria Sharapova, and other past champions. Here, as in the men’s game, there is an exciting emergence of new young talent challenging the ‘old guard’.  I have no doubt that the rest of the summer’s sport, in events such as the Tour de France, golf’s Open Championship at Hoylake and the Commonwealth Games in Glasgow, will throw up other demises, departures, abdications and shock defeats of established past winners.

While the emergence of new talent is both exciting and essential for the good of the sport, what is equally, if not more, fascinating is how the so called ‘old guard’ respond to that challenge, and the hugely important leadership role they play in creating the next generation of champions. Despite the performances of the emerging stars,  the four semi-finalists in the World Cup are all established ‘giants’ of the game, and the eventual Wimbledon winners in both the men’s and women’s finals this weekend were also past winners, and amongst the pre-competition favourites.

Which past champions disappear, slide off into the sunset, and enjoy the dreams of their past glories, and which go back to the gym, come back stronger, fitter, fresher and ready to mount another bid?