Tennis Rally for Relief

(L-R) Petra Kvitova of the Czech Republic, Rafael Nadal of Spain, Serena Williams of the United States and Novak Djokovic of Serbia take part in the Rally for Relief Bushfire Appeal event at Rod Laver Arena on January 15, 2020 in Melbourne, Australia.
(Jan. 14, 2020 - Source: Getty Images AsiaPac)