The six-time Major winner Boris Becker has been on the Tour for a long time, first as a player winning his maiden Grand Slam title at 1987 Wimbledon and then as a commentator, and as a coach working with Novak Djokovic from 2013 to 2016.
The German said: "I truly respect Roger Federer, he is a true ambassador of the game for such a long time. I love Nadal and Djokovic, but my favourite is Federer because of the way he plays, of the way he serves, he comes to the net, he plays slice backhand, he has a variety of tennis that most kids should emulate and I feel like he is carrying the burden of being an ambassador of being the best player of all time in a perfect manner and I love that."
Federer, Nadal and Djokovic were already very good when they were younger. The former world No. 2 Albert Costa recalled when he faced the Basel native back in 2001. "At the beginning, he was not as strong as today but you could see he was unbelievably talented.
You knew that if he improved his mental strength, he would have become world number one," said Costa who never managed to bring the Swiss to play the Barcelona Open where he served as a Tournament Director until this year.
On how Nadal was looking like in 2003 at 16 years of age, Costa added: "I knew he had an amazing talent and mentality, at the time you do not know what he is capable off but you could see something special." Djokovic and Nadal are currently tussling to emerge as the year-end no. 1.