David Nalbandian explains why Roger Federer is the best ever

lost to 11 times and won eight. They faced each other in three finals: 2006 Masters Cup, 2007 Madrid won by the Argentine; 2008 Basel, won by the Swiss. He is one of the best in history, not only for the titles he won or he holds but for his age and longevity.

Its unbelievable the level he keeps having. Seeing him is amazing. He is different than the rest because his technique and shots are almost perfect, and so he has less injuries and less fatigue. It makes him keep playing at a high level.

Being almost perfect is a good thing that makes him suffer less the high competition, which we suffer at the extreme as tennis players. Also, his mentality is 100% a winning one, said Coria in an interview to Info Bae.

Guillermo Coria faced Federer thrice and he lost all three times: 2004 and 2005 Hamburg, 2005 Masters Cup. You have no words to describe this unbelievable champion. Many believed that it was impossible that he would win a Grand Slam title again, he came back.

This change had a lot to see with his humility because he switched racket and he added to his team a former top ten who changed his game. One of these things is the backhand, a key shot that improved in a big way. It speaks very well of how he is professional.

Accepting changes in his game to keep making history, besides being perfect physically, make him become one of the best sportsmen of all time. If he keeps healthy, he can still achieve a lot. ALSO READ: Rafael Nadal: Worse players than David Ferrer won a Grand Slam title