PEDs would help tennis players A LOT. They're not going to make them hit a prettier backhand, but they'll allow them to run down an extra ball in the 5th set so that they can hit that pretty backhand.
His ability to out battle Nadal in their marathon a year ago after going 5 hrs vs. Murray in the semis.
I think Nadal even wondered out loud how he could that.
Joker had a history of endurance issues and now he is the strongest and most fit out there? Yeah, I wonder out loud too. Especially in less than 2 yrs too.