The data and stats that show where the women's Australian Open final between Keys and Sabalenka will be won and lost
A reworked serving style by Madison Keys could be the weapon that helps the American halt the power of Aryna Sabalenka.
Australian Open: Sinner beats Shelton in straight sets to reach final - reaction
Follow live text and radio commentary featuring Jannik Sinner and Novak Djokovic from the Australian Open semi-finals in Melbourne.