Alexander Zverev has never hidden his admiration for Roger Federer. And the interview he had ahead of the Hopman Cup in Perth wasn't an exception. The world no. 4 recalled an anecdote when Federer was returning from a six-month break, in 2017.

'The first time I practiced with him here, last year, I said he looks better than he was the last few years. He looked stronger, his legs were bigger again, he looked quicker as well - in practice and also in the match - so I actually told my team he's going to be one to really look out for the whole year.

And everyone keeps reminding everyone about his age but the way he looks, the way his body is, you can't really tell,' the 20-year-old Hamburg native said. What about his prospects? In that Zverev doesn't have much patience.

'Every time I lose a match, I say that I am still learning, I did it for three years, but I am not willing to learn anymore.' Story by Sports Chau, Omni Sport Twitter