and how do you know this? lol
Nole will be 25 by the FO. By the time Federer played his first slam aged 25(USO 2006), he had already won 8 slams. So Nole is behind.
: "This is the most physically demanding era ever."
Nole is a grinder, he is nothing like Federer who relies on technique to win.
Can't picture Nole with more than 10/11 slams. He won't have Federer's longevity.