Monte-Carlo Rolex Masters, Monaco

[CR2] Roger Federer (SUI) vs. [CR18] Gael Monfils (FRA)

Why does Monfils struggle with staying focused during a match?  He will have periods of brilliant play and then suddenly for no apparent reason, he will start to do “silly” things.  Is this just a ploy or does he truly only have fun on the tennis court when he entertains the audience with unnecessary antics?  There is no need for the drama, when he is playing brilliantly, his tennis ability is sufficient to keep the audience enthralled.  Monfils is such a gifted athlete; therefore, it is disappointing that he has never fully lived up to his potential.  He should have won at least two majors by now and that may be a reflection of his mental strength.  Or perhaps, winning the majors was not his goal, perhaps he is content just to be playing tennis and entertaining the fans.  Yet, I refuse to believe that anyone would subject themselves to years of rigorous training if they did not seriously desire to someday capture the ultimate prize, a major. Today, Monfils managed to curtail the antics long enough to get the 6-4, 7-6(5) victory over Federer.  Will he continue to progress in this tournament or has he had enough serious work for now?