But what set him apart is his ice cool nerves in the tightest situations. He never seem to panic at all
Federer actually caves in when under pressure. He has never really been tested or pushed to the limit apart from Nadal on clay.
Sampras has a 29-9 win loss record in 5 setter grand slam matches. In 5 of those wins, he also came back from being two sets down. Federer hasnt won even 65% of his 5 setters and doesnt have comeback wins either -
http://www.tennis28.com/slams/five_setters_winpct_career.html
After early exits at Indian Wells and Miami, for the first time in three years, Federer had a ‘decade’ to prepare for the clay court season -
to practice on the slow surface.
to practice exclusively for the inevitable clash with Nadal in the final.
to formulate strategies and rehearse them to negate Nadal’s advantage.
to apply what was learnt from the defeats and the wins over Nadal.
to brainstorm with his coach, an expert of clay, without any time pressure.
to prepare himself physically and mentally for the slow surface.
He had nothing to do but concentrate on the clay court season for a long long time this year. And what happens? In the first clay tournament at Monte Carlo, he loses to Nadal in straight sets in the finals. He could not win even one set against his only realistic threat after adequate preparation. Almost unanimously, everyone who watched the match had the same observation - that he caved in, did not want it as much as the opponent, lacked effort and had poor body language. Even worse, is that the fans and media noticed the same on all of his loses this year, irrespective of the surface. The story in the French open was similar. Didnt he convert just 1 of 17 break points against Nadal ? He also caved in when he was facing break points.
If Sampras were to face Nadal three times in successive French open championships, he would have found a way past. He may not have won the title, but he wouldnt be thrashed by the same player year after year. Sampras played numerous five-setters in his career, specially at Grand Slams. He had the ability to gut it out. After all, his parents immigrated from Sparta and being a descendent of Hercules, from childhood he was 'taught never to retreat, never to surrender'