Casper Ruud cools down during the men's singles 3rd round match between Marin Cilic of Croatia and Casper Ruud of Norway at the Australian Open tennis tournament in Melbourne, Australia, Jan. 24, 2026. (Photo by Wang Shen/Xinhua)

Casper Ruud hits a return during the men's singles 3rd round match between Marin Cilic of Croatia and Casper Ruud of Norway at the Australian Open tennis tournament in Melbourne, Australia, Jan. 24, 2026. (Photo by Wang Shen/Xinhua)

Marin Cilic hits a return during the men's singles 3rd round match between Marin Cilic of Croatia and Casper Ruud of Norway at the Australian Open tennis tournament in Melbourne, Australia, Jan. 24, 2026. (Photo by Wang Shen/Xinhua)

Marin Cilic serves during the men's singles 3rd round match between Marin Cilic of Croatia and Casper Ruud of Norway at the Australian Open tennis tournament in Melbourne, Australia, Jan. 24, 2026. (Photo by Wang Shen/Xinhua)

Casper Ruud hits a return during the men's singles 3rd round match between Marin Cilic of Croatia and Casper Ruud of Norway at the Australian Open tennis tournament in Melbourne, Australia, Jan. 24, 2026. (Photo by Wang Shen/Xinhua)

Casper Ruud hits a return during the men's singles 3rd round match between Marin Cilic of Croatia and Casper Ruud of Norway at the Australian Open tennis tournament in Melbourne, Australia, Jan. 24, 2026. (Photo by Wang Shen/Xinhua)