WTA Finals: Sabalenka reaches semi-finals

Aryna Sabalenka moved closer to securing the year-end world number one ranking after defeating Jasmine Paolini at the WTA Finals. Sabalenka's victory guarantees her a spot in the semi-finals, making her the first player to reach the final four. Zheng Qinwen also secured a victory against Elena Rybakina, keeping her semi-final hopes alive.