Coco Gauff 's racket-smashing tantrum at the Australian Open drew some backlash ... but not from Serena Williams , who came to the tennis star's defense -- and even offered some tips!! Williams' husband, Alexis Ohanian , started it off ... going on X to write a message after Gauff took out her frustrations out on her equipment after losing to Ukraine's Elina Svitolina on Tuesday. FYI, Gauff did not explode in front of the crowd -- she beat up the racket in the Rod Laver Stadium tunnel, but the

Tag-uri: Australian Open