Aryna Sabalenka reached the semifinals of the WTA Finals with a 6-3, 7-5 win over Jasmine Paolini on Monday for a second straight victory in the group stage.
Sabalenka and Iga Swiatek were in a close battle for the year-ending ranking, but the latter needed to win all her matches at the WTA Finals to surpass the Belarusian at the top spot.