- American beats top seed 6-4, 6-3 to reach semi-finals in Cancun
- Elena Rybakina edges Maria Sakkari 6-0, 6-7(4-7), 7-6(7-2)
Jessica Pegula upset world No 1 Aryna Sabalenka 6-4, 6-3 to win her second group stage match at the WTA Finals in Cancun and advanced to the semi-finals after Elena Rybakina edged Maria Sakkari 6-0, 6-7(4-7), 7-6(7-2) in the evening match.
Pegula, who came into the contest with a dismal 1-4 record against the hard-hitting Sabalenka, managed to absorb her powerful serve to extend rallies and thwart the Belarusian’s comeback attempts.