When Pegula lost Friday, she complained of slow conditions on the court. Sabalenka has noted it as well -- but not everyone feels that way.

Olga Danilovic upset Jessica Pegula in the Australian Open third round to notch her third career Top 10 win and move into the second week of a major for the second time.

Jessica Pegula had a pretty good idea about what was to blame for her shock Australian Open loss as the world No. 6 lamented that the court was "so slow" while the balls were "so heavy." On Friday, the American tennis star saw her run at Melbourne Park come to an end after world No. 55 Olga Danilovic ousted her 7-6 (3) 6-1.

World No. 55 Olga Danilovic produced a stunning performance at the Australian Open, defeating seventh seed Jessica Pegula in the third round on Friday. The match, which lasted 1 hour and 30 minutes, ended with a 7-6 (3), 6-1 scoreline in favor of Danilovic.

Day 6 of the Australian Open saw a number of big names in men's and women's singles easily advance to the next round. But one major loss was No. 7-ranked Jessica Pegula, who was defeated in two sets by Serbian Olga Danilović.

Pegula said before the start of the Australian Open that Keys could absolutely win it if she played her very best.

Madison Keys has been forced to pull out of next month’s ATX Open in Texas as a direct result of her winning the Australian Open. Keys sent a shiver down the spine of the tennis world when she toppled back-to-back Australian Open champion Aryna Sabalenka in last week’s Melbourne showpiece.

Jessica Pegula has historically been a really solid performer at the Australian Open, making the quarterfinals three times in the past.

Four Americans - Coco Gauff, Jessica Pegula, Madison Keys, and Emma Navarro - currently occupy a top 10 spot in the WTA rankings.

However, No. 7 seed Jessica Pegula was ousted by world No. 55 Olga ... Djokovic — who won 10 of his 24 Grand Slam titles at the Australian Open — overcame some mid-match breathing trouble ...

Novak Djokovic, Coco Gauff roll to Australian Open's 4th round. Naomi Osaka retires due to injury and Jessica Pegula was upset in the third round.

American stars Coco Gauff, Ben Shelton and Madison Keys are still in the draw at the Australian Open -- but who else is? We break it down.