Despite having been practising on court that morning, his white socks and box-fresh trainers are spared even the faintest dusting of clay – and no surprise, this is a man who admits that before each Wimbledon appearance last year he insisted his shorts and T-shirt were neatly pressed. His love of clothes aside, he possesses a fleet of fast cars including a scissor-doored silver Mercedes SLS and, it is rumoured, a blue Porsche 911 Carrera 4S that was a gift from Sharapova.

• Grigor Dimitrov ready to step out of the shadows at Wimbledon and create a legend of his own We meet in April at the Monte-Carlo Country Club, the setting for the Monte-Carlo Rolex Masters.

Dimitrov, who was knocked out in the quarter-finals by Gaël Monfils, arrives wearing tortoiseshell sunglasses, a blue Nike hoodie, shorts, and a gold Rolex watch that sparkles in the Riviera sun.

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Dimitrov had just triumphed at the Aegon Championships at Queen’s, beating Feliciano López to claim the trophy, and knocked Andy Murray out of the Wimbledon quarter-finals in an imperious display of pace and power.

After beating Murray in 2014 he was knocked out by Novak Djokovic in the semi-finals, but remains convinced that, had he won a crucial fourth-set point, he would have gone on to secure his first Grand Slam. The memory of ‘Grigsy’ still raises a smile from Dimitrov, even if it is just the latest in a long line of monikers: ‘Showtime’ and ‘Primetime’ for his on-court audacity and flamboyance and ‘Baby Fed’ after Roger Federer, to whose effortless style he is supposedly the heir.

But he has also found fame beyond sporting prowess.

I had no coach, nobody, and took the Tube every morning at 6am. I had my Oyster card, and was just a guy with a racket bag, listening to my music.’ That was a junior tournament in 2008.

Chances are his fellow commuters barely noticed the lanky teenager in a baseball cap, nodding away to his headphones.

For three years he has been in a relationship with Maria Sharapova, herself a former Wimbledon champion.

They are the ‘golden couple’ of tennis, flitting between shared homes in Monaco and Los Angeles, chased by airport paparazzi along the way.

Grigor Dimitrov remembers well his first visits to the lush lawns of the Queen’s Club in London.

‘I was 17 and staying with friends at the end of the Northern Line.