Dolgopolov85
G.O.A.T.
Which is why I asked. I have played both sports, was pretty crappy at TT, much better at tennis, albeit neither at national league level and not going to because I am past the age for all that. There is no comparison. Maybe your TT experience biases you to attach too much importance to strokes? Fed may still have the strokes but ultimately if you are too tired to get to the ball halfway through the match, there's no point in having all those amazing shots. Basically tennis is a lot more physical.