By Ian Ransom and Shrivathsa Sridhar MELBOURNE, Jan 23 (Reuters) - Aryna Sabalenka and Coco Gauff took a rocky path to the fourth round of the Australian Open on Friday but Carlos Alcaraz glided into the last 16 in his 100th Grand Slam match.

Gael Monfils has announced that he will retire from professional tennis at the end of the 2026 season, marking the conclusion of a remarkable career. He’s already started his farewell tour, which included his last appearance at the Australian Open earlier this year.

Madison Keys ended a sometimes agonizing decade of trying to win a Grand Slam singles title last year at the Australian Open. In the ensuing days, weeks and months, people of all stripes approached her to ask how the experience had changed her life.