 Daniil Medvedev lashed out at a presumed heckler during his opening match of the 2023 Australian Open. The Russian tennis pro opened this years tournament Monday with a first-round match against American Marcos Giron at Rod Laver Arena. But as Medvedev was about to finish the match, he turned around to a spectator and yelled ... Daniil Medvedev lashes out at Australian Open fan: Fk off... 