Shane Warne, Lewis Hamilton and Novak Djokovic are among a growing number of global sport stars to have made major donations to the Australia bushfire appeal.
Former Australia cricketer Warne has raised funds by auctioning his famous baggy green cap and announced the winning bid was 1,007,500 Australian dollars (£525,000).
Six-time Formula One world champion Hamilton said on Twitter he was "pledging $500k to support the animals, wildlife volunteers and rural fire services".
It breaks my heart to see the devastation the Australian bushfires are causing to people and animals across the country. I'm pledging $500k to support the animals, wildlife volunteers and rural fire services. If you are able to, and you haven't already then you can donate too. pic.twitter.com/DXjScK5Oqq — Lewis Hamilton (@LewisHamilton) January 9, 2020
Meanwhile, world number two Djokovic has matched fellow tennis ace Maria Sharapova's donation of 25,000 Australian dollars.
Huge parts of south-east Australia have been ravaged by fires, with 27 people killed and more than 2,000 homes destroyed.
Australian tennis star Nick Kyrgios has pledged to donate 200 Australian dollars for every ace he serves at all the tennis tournaments he enters in January.
Other Australian tennis players Alex De Minaur and John Millman have followed Kyrgios' lead by offering to donate 250 and 100 Australian dollars respectively for every ace they hit during the month.
Yes, @MariaSharapova I would like to match your $25k donation to double the aid sent to these communities. We stand by you, #Australia. 🙏🏼 https://t.co/wiUZHzg9cz — Novak Djokovic (@DjokerNole) January 6, 2020
Fellow Australian Ashleigh Barty, the current world number one, promised to donate all of her prize money from last week's Brisbane International tournament and went on to lose in the final.
Rafael Nadal, Serena Williams and Roger Federer will help raise funds by playing in a series of exhibition matches on January 15, five days before the Australian Open.
Kyrgios, Greece's Stefanos Tsitsipas, Japan's Naomi Osaka and Dane Caroline Wozniacki will also take part in the Melbourne fundraiser.
Another Australian, Formula One driver Daniel Ricciardo, will raffle his race suit from this year's Australian Grand Prix to help bushfire victims.
I'll be donating $500 for every registered save by all @premierleague goalkeepers this weekend. Please visit any of the sites below if you're able to contribute. Thank you 🙏🏼 https://t.co/ALkFfMdOL8https://t.co/XhnSbJMHX0https://t.co/cOYyfGOZMVhttps://t.co/3aUufmplV7 pic.twitter.com/07QarFLEBJ — Maty Ryan (@MatyRyan) January 9, 2020
Brighton goalkeeper Mat Ryan has promised to donate 500 Australian dollars for every save registered by Premier League goalkeepers this weekend.
Over a billion animals have been reported to have died in the bushfires and the 27-year-old Australia international said the money will go to WIRES, the Australian Wildlife Rescue emergency fund.
American mixed martial artist Jorge Masvidal, the UFC welterweight champion, has pledged to donate all the proceeds from his visit to Australia in February and said on Twitter he plans to help firefighters tackle the blazes himself.
