The tennis racquet racket is highly lucrative and just like the clothing caper, competition at the top can be fierce.
Novak Djokovic, with the help of Andy Murray, is two wins away from an 11th Australia Open title. BBC Sport analyses their intriguing player-coach partnership.
Follow Mail Sport's live blog for the latest score and game-by-game updates from the Australian Open for the women's ...
Novak Djokovic will take on Alexander Zverev in the Australian Open semifinals - and the Serbian was full of emotion after beating Carlos Alcaraz in the last eight ...