The pair of icons and old friends got together for a long Instagram Live chat on Tuesday.
WTA CEO Steve Simon is on board with Roger Federer's proposed ATP-WTA merger.
World No. 2 says resuming 2020 season is a lost cause, aims for 2021 Australian Open.
The plan will span both tours and be supported by the WTA, ATP, Grand Slams and ITF.
Younger brother of Karim Hossam, who was also banned for life for match fixing.
Maestro sends musical message to Grigor.
Nick Kyrgios asks Rafa Nadal to do live Instagram chat.