Adelaide, Feb 25 (AP) Coco Gauff and Jil Teichmann have advanced to the Adelaide International semifinals after three-set wins on the Memorial Drive hard courts Thursday.

Teichmann beat Anastasija Sevastova 6-4 ,6-7 (8), 7-5 and was later joined by 16-year-old Gauff, who beat fellow American Shelby Rogers 2-6, 6-4, 6-4.

Teichmann had five match points in the second-set tiebreaker but was unable to close it out. The 23-year-old Swiss player was then forced to save two match points while trailing 5-4 in the third.

"It was a rollercoaster and what I felt was nerves," Teichmann said.

"It was a very tense match, very long rallies every time. Anastasija is a tough player and you have to play every point and every game, doesn't matter if you're serving or returning."

Gauff has won five straight matches, including two in qualifying in Adelaide, since her second-round loss to fifth-seeded Elina Svitolina at the Australian Open.

She and Rogers had an extended rally in the ninth game of the third set, which Gauff won after setting up game point with an incredible cross-court return.

In later quarterfinals, French Open champion Iga Swiatek is against American Danielle Collins and second-seeded Belinda Benic takes on Storm Sanders.

Gauff will play either Bencic or Sanders in the semis, and Teichmann will play the winner of the Swiatek vs. Collins match. (AP)

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)