Canada's Victoria Mboko earned a 7-6 (4), 4-6, 6-0 fourth-round win over Russia's Mirra Andreeva on Monday at the Miami Open tennis tournament.

Mboko, the tournament's 10th seed, had six aces to seven double faults and converted on just one of her six break-point chances.

However, the 19-year-old won 77.8 per cent of first-serve points in the two-hour, 17-minute women's singles match.

Mboko, from Burlington, Ont., will face Karolina Muchová of Czechia in the quarterfinals Tuesday.

The 18-year-old Andreeva, the eighth seed, had six aces to two double faults and broke once in four chances. She won 66.7 per cent of first-serve points.

Mboko and Andreeva beat Australia's Ellen Perez and Demi Schuurs of the Netherlands 7-6 (7), 6-3 on Sunday in the Round of 32 in the women's doubles tournament. They return to the court for a Round of 16 match on Tuesday against Australia's Storm Hunter and Jessica Pegula of the United States.

In men's singles action, Montreal's Félix Auger-Aliassime was ousted in the third round by France's Terence Atmane 6-3, 1-6, 6-3.

The seventh-seeded Auger-Aliassime had 11 aces to four double faults and had 26 winners to Atmane's 12. However, the Frenchman won three straight games to break a 2-2 tie in the final set before sealing the deal two games later.

Francisco Cerundolo's ​love affair with the Miami Open shows no signs of cooling after the Argentine world No. 19 stunned Russian Daniil Medvedev 6-0 4-6 7-5 to reach the fourth round.

The 27-year-old secured his first top-10 victory ‌of the season against the former world No. 1, who arrived in Florida in peak form after thwarting Carlos Alcaraz's 16-0 start to the season, and finishing as runner-up at Indian Wells.

"I felt good in my first-round ​match here, and now I feel way better," ​said Cerundolo. "I'm recovering that confidence. The level was there, I was just trying to find it. But now, [I am in] the Round of 16, ​so hopefully I can keep it up."

The match began with Cerundolo ⁠racing through the opening ⁠set, but Medvedev rallied from 1-3 down ‌in the second set to force a decider.

The pair traded high-quality rallies amid the Florida heat, with Cerundolo's forehand aggression disrupting Medvedev, while he produced an instinctive winner to end the two-hour 17-minute encounter.

"I didn't know what to ⁠expect … It was a great match, super tough," Cerundolo added. "It was my first match against Daniil. He's probably one of the only guys on Tour who I have never played. He ‌has had a great year so far, so I didn't expect to be up 6-0 in the first set and a break up in the second."

The match also had an unusual incident in the third set when umpire Mohamed ​Lahyani almost became entangled with the Spidercam, the aerial camera that flies over the court during matches.

The camera's cables ⁠got caught on the umpire's chair, causing the structure to move and forcing Lahyani ⁠to step down onto the court quickly to avoid falling. The Swedish umpire subsequently ⁠requested ⁠that the production team keep ​the Spidercam from passing so close to his chair or the players.

Cerundolo has long thrived in ​Miami, highlighted by his ⁠semifinal run on his debut in 2022 before adding quarter-final showings in 2023 and 2025. He will next face Frenchman Ugo Humbert.

The defeat ends Medvedev's pursuit of a Tour-leading 20th win of the season, with the 30-year-old exiting Miami with a 19-5 record after already claiming titles ⁠in Brisbane and Dubai.