(Photo credit: Geoff Burke-Imagn Images)

World No. 1 Aryna Sabalenka won 10 of the last 12 games in dispatching Caty McNally 6-4, 6-2 in one hour, 25 minutes in a third-round match on Sunday night at the Miami Open.

Sabalenka of Belarus, coming off the BNP Paribas Open championship at Indian Wells, Calif., is defending her title in Miami Gardens, Fla.

It wasn't all that easy, as Sabalenka blew a 4-2 lead in the first set for 4-4, then needed six deuces to hold serve -- despite a 15-30 start -- before breaking McNally's serve for the third time to win the set.

Sabalenka converted 5 of 8 break points in the match, to 2 of 3 for McNally, and won 67.4% of her first serve points (29 of 43), to 55.3% (21 of 38) for her American opponent.

Next up for Sabalenka is No. 23 Qinwen Zheng of China, who had a much tougher match in beating 15th-seeded Madison Keys of the United States 4-6, 6-2, 6-4 in two hours, 17 minutes.

'The ball was just like a bomb for me at the beginning,' Zheng said of the early going against Keys. 'I couldn't react. I haven't had this speed of match in a long time.'

Zheng would catch up, finishing with 31 winners -- 23 in the last two sets -- to Keys' 15. Zheng had more aces (11-4) and fewer double faults (3-5). She converted four of 13 break-point opportunities, but Keys succeeded on just 2 of 12.

Sabalenka won the first six meetings against Zheng, who won two of the next three of nine total.

'I'll focus on myself. I'll focus on my game. I'll try to stay focused from the first point 'til the last,' Sabalenka said of playing Zheng. 'She's an incredible player. We played a lot of matches. I have a good record against her, but it doesn't say anything. It's always tough battles. I'm always looking forward to play her. It's always a fight and I really enjoy it.'

Third-seeded Elena Rybakina of Kazakhstan defeated No. 27 Marta Kostyuk of Ukraine 6-3, 6-4. No. 5 Jessica Pegula downed No. 26 Leah Fernandez of Canada 6-2, 6-2.

Other high seeds didn't make it out of the round. No. 7 Jasmine Paolini of Italy was knocked out by No. 25 Jelena Ostapenko of Latvia 5-7, 6-2, 7-5. No. 9 Elina Svitolina of Ukaine fell to American Hailey Baptiste 6-3, 7-5. No. 11 Ekaterina Alexandrova of Russia was eliminated by No. 34 Jaqueline Cristian of Romania 6-3, 4-6, 7-6 (5).

Australia's Talia Gibson, coming off of a quarterfinal run at Indian Wells where she earned her first three top-20 wins, notched her fifth on Sunday. Gibson, who beat Naomi Osaka in straight sets on Saturday, downed 18th-seeded Iva Jovic of the United States 6-2, 6-2 on Sunday.

Gibson did not face a break point while converting four of eight.

--Field Level Media