Federer and Nadal form part of bushfire relief fundraiser organised by Tennis Australia

It is set for January 15 which is five days before the start of the Australian Open; it will take place at Melbourne's Rod Laver Arena.

Nick Kyrgios, Stefanos Tsitsipas, Naomi Osaka and Caroline Wozniacki; will also be playing.

"For a period of about two and a half hours we're going to be showcasing the game, but also coming together as a community to play our part in the relief effort," said Tennis Australia chief Craig Tiley.

This comes after various players have announced pledges; including Ashleigh Barty donating all prize money from Brisbane International and Nick Kyrgios donating per ace hit this summer.

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