The Russian has not played since last September.
The American could miss more than a month, depending on what further tests reveal.
The Miami Open at Hard Rock Open was a success, and it plans to be even better in 2020.
Fresh off winning his 101st title, Roger Federer has a clear aim.
Ash Barty is an official member of the Top 10 as of Monday thanks to her Miami title.
Canada now has three Top 40 in the ATP rankings...
Tennis rock star Roger Federer talks longevity.
