John Peers and Henri Kontinen have combined to become the first pair through to the men’s doubles final after beating Leonardo Mayer and Joao Sousa 6-1, 7-6 (6) at the Australian Open.

Peers and Kontinen, who combined to win the 2017 Australian Open doubles title, will play either the American team of Ryan Harrison and Sam Querrey or the French combination of Pierre-Hugues Herbert and Nicolas Mahut.

The women’s singles finalists will be determined later Thursday. Two-time Wimbledon winner Petra Kvitova was playing Danielle Collins in the first of the semifinals on Rod Laver Arena, followed by U.S. Open champion Naomi Osaka against seventh-seeded Karolina Pliskova.

The first of the men’s semifinals will be in the night session, when 17-time major winner Rafael Nadal takes on 20-year-old Stefanos Tsitsipas.

The weather was hot and sunny at Melbourne Park, with the temperature expected to hit 36 Celsius (97 Fahrenheit).

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Japan's Naomi Osaka makes a forehand return to Ukraine's Elina Svitolina during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia, Wednesday, Jan. (AP Photo/Aaron Favila)
Japan’s Naomi Osaka makes a forehand return to Ukraine’s Elina Svitolina during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia, Wednesday, Jan. (AP Photo/Aaron Favila)