Novak Djokovic is the 'strongest and most complete' player of the big three, according to former world number six Gilles Simon.
Simon has been doing a lot of media work of late to promote his book, and he did an interview with French newspaper L'Equipe this week.
In it, he was asked to assess the big three given he has played a collective 30 matches against them in his career, and he says there is one just a little better than the others.
"The strongest is Novak Djokovic,” Simon said. “He’s stronger than the two others.
"To me, he’s the most complete player with the least weaknesses and he will be the hardest to beat."
“Rafael Nadal is extremely strong as well and extremely difficult to beat.
“I think he is the strongest on clay, the biggest challenge on the surface, especially in Roland Garros. What he did [at the French Open] was unreal.
Finally, Simon turned his attention to Roger Federer, saying: "Federer is the same. He is stressful to play against but very pleasant to watch.
Simon though has also claimed that Federer's popularity has 'lost tennis 20 years,' due to too many coaches and parents of young players obsessing over copying him.
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