Roger Federer's former coach Paul Annacone spoke about Rafael Nadal's straight-set ATP Finals loss to Alexander Zverev in London. The American, commenting on Tennis Channel, said: "I was just looking through some of his results.
The only thing I could come up with is that Rafa won just one indoor hard court tournament in his whole career, 2005 Madrid and it's a bit of head-scratcher. He should be fine but after 20 minutes into that match I was not really sure of what Rafa was trying to do, I did not see a game plan and he looked a little bit sluggish, a little slow and Zverev really did a great job in taking advantage of that."
Former World No. 1 Jim Courier spoke about Daniil Medvedev's loss to Stefanos Tsitsipas: "Medvedev said that he took some time off after his great run where he made six consecutive finals after Shanghai. He is trying to find his momentum, Tsitsipas got the jump on him today and it was a steady mental performance.
That's a significant milestone for Tsitsipas." Annacone added: "When you play someone like Medvedev it's so easy to get frustrated because he probably should not move that well, he should not be a great counter puncher and yet he is.
It's very easy to overplay, lose your composure and your point structure." Tsitsipas will face Zverev next on Wednesday.