Kyrgios is one of the main stars to do so with the eccentric Aussie ace putting on Twitter that he will donate $200 per ace for the whole summer this year.
Sam Stosur added the same tweeting just an hour later that; she will also donate the same amount over the Aussie summer.
Alex de Minaur went even higher donating $250 per ace; with John Millman, Alex Bolt and Priscilla Hon also joining the efforts.
https://twitter.com/NickKyrgios/status/1212677231270645762
https://twitter.com/bambamsam30/status/1212702425372475392
https://twitter.com/alexdeminaur/status/1212686230296547328
The ATP Cup have also upped the stakes and in response to Kyrgios' and co's efforts will donate $100 to Red Cross Australia bushfire disaster relief for every ace served in the whole tournaments; with over $150,000 expected to be donated.
https://twitter.com/ATPCup/status/1212739231916818435