World No. 1 notes biggest change in men's game.
Kyrgios' playful jab brings smile to Bad Boys star.
And Kyrgios says let him have it.
The Serb has a lot on his mind these days, and he's not afraid to talk about it.
When Fabio Fognini is the calm one in a partnership.
The two-time major champ has a big victory but isn't in the clear year.
The Romanian still feels pain in her ankle ahead of her third-round match against Lauren Davis.
