Danielle Collins defeats Elise Mertens to become third American in Australian Open quarterfinals

Collins advanced 4-6, 6-4, 6-4 and will play the winner of the following match on Rod Laver Arena between two-time major winner Simona Halep and Alize Cornet.

Jessica Pegula and Madison Keys are the other Americans in the quarterfinals and will play their matches on Tuesday. It is the second year in a row that three Americans have featured in the quarterfinals.

Collins has won now seven major matches when losing the first set (two this week) since 2019. That is tied with Kaia Kanepi for most of any woman in that span.

Information from The Associated Press was used in this report.