The Latest at the Australian Open on Monday (all times local):

10:50 a.m.

American Danielle Collins kicks off the second week of the year's first Grand Slam tournament when she plays Elise Mertens in the opening match on Rod Laver Arena in the fourth round. The pair have met just once before at a major, when Mertens won in straight sets at Wimbledon in 2018. Two-time major winner Simona Halep faces Alize Cornet in the next match and later No. 2 Aryna Sabalenka plays Kaia Kanepi. U.S. Open champion Daniil Medvedev will take on No. 70-ranked Maxime Cressy in the fourth round as Medvedev continues his bid to become the first man in the Open era to win a second Grand Slam singles title at the next major tournament. In other matches, fourth-seeded Stefanos Tsitsipas faces No. 20 Taylor Fritz and 2014 U.S. Open champion Marin Cilic plays Felix Auger-Aliassime.

More AP tennis: https://apnews.com/hub/tennis and https://twitter.com/AP_Sports