- World No 1 beats Elena Rybakina 6-2, 3-6, 6-3
- Belarusian joins Jessica Pegula in semi-finals
Aryna Sabalenka outlasted Elena Rybakina 6-2 3-6 6-3 to reach the WTA Finals last four in a win-or-bust group match that had been halted the day before due to stormy weather in Cancún.
Under bright sunshine but still unrelenting winds, world number one Sabalenka unleashed an ace out wide on match point to send fourth seed Rybakina packing from the year-end tournament.