Nick Kyrgios will donate 200 Australian dollars (£106) for each ace he hits in events held in Australia in January to help those affected by the bushfires.
The Australian, 24, earlier called on Tennis Australia to host a fund-raising exhibition, with chief executive Craig Tiley confirming plans are being made.
Fellow Australians Alex de Minaur and John Millman pledged their own support, donating money for every ace they hit.
Meanwhile Australia’s cricketers are planning tributes and fund-raising.
They and opponents New Zealand will wear black armbands in tribute to those affected by widespread bushfires in Australia when the teams meet in Friday’s third Test in Sydney.
There will also be a minute’s applause to honour the country’s firefighters.
And it was announced on Thursday that ATP Challenger event the Apis Canberra International, which was set to begin in Canberra on 6 January, will relocate to Bendigo due to ongoing bushfire activity in the region.