Originally Posted by West Coast Ace
He hated the way his old man pushed him into it; sent him to Bolleteri's Academy and away from his friends against his will. Now he can play when he wants - and he realizes it's a good way to keep his name and school in the public eye.
Yes, I read his book. But, he did hate tennis the whole time he played not just when the old man forced him to play. Its likely that being retired he has a lot of time on his hands and Tennis is his identity and he likes being in the limelight.