Ex-coach of the former world number one Serena Williams, Rennae Stubbs, has highlighted the reason behind Aryna Sabalenka’s outburst after suffering defeat in the final of the Australian Open.

Aryna Sabalenka admits learning how to deal with losses has been "the hardest lesson" for her as she wants to win every time she steps onto the court but also doesn't want to be disrespectful to her ...