(Adelaide) 2022 Australian Open runner-up Danielle Collins needed seven match points before beating Switzerland’s Jil Teichmann 6-3, 7-6 (2) on Wednesday, earning her Adelaide International Tournament Quarter-Final Ticket.

Collins was unbroken in the first set against Teichmann, although she faced two break points in the eighth game. She, however, erased a 1-3 deficit in the second set, and won four straight games.

She was unable to seal the outcome of the match on serve, setting the stage for a spectacular end to the match. Trailing 0-40, Teichmann saved five match points to level the score at 5-5 after six ties.

Collins, who lost to Australia’s Ashleigh Barty in the Australian Open final last year, then won six of the first seven points in the tiebreaker.

Earlier Wednesday, two-time Wimbledon champion Petra Kvitova kept her pristine record in 2023 after taking advantage of the retirement of her opponent, Zheng Qinwen.

After overcoming a 3-5 deficit in a first set that lasted 71 minutes and saving three set points in the tiebreaker to win 8-6, Kvitova got her ticket for the quarter-finals when Zheng threw in the towel due to a left thigh injury.

On the men’s side, Thanasi Kokkinakis upset favorite Andrey Rublev 6-4, 3-6, 6-3. Home favorite Kokkinakis will face Miomir Kecmanovic in the quarter-finals after the Serb defeated Australian Jason Kubler 5-7, 7-6(1), 6-4.

Spaniard Alejandro Davidovich Fokina also beat John Millman 6-3, 6-3 to advance to the quarter-finals.