Madison Keys’ Grand Slam window wasn’t just closing. It had been slammed shut. She has always been an excellent player, but it felt like women’s tennis had passed her by. Far from her peak in 2017, when she was ranked No.

Madison Keys says she kept telling herself to be brave down the stretch of a tight third set in the Australian Open final against two-time defending champion Aryna Sabalenka.

Due to an odd rule preventing more than top 10 player participating in a WTA 250 tournament, the ATX Open announced Tuesday that Keys will no longer be eligible to participate in the event. The Austin-based tournament already has No. 6 Jessica Pegula committed to play.

Keys had to go through the world Nos. 2 and 7 in Melbourne before meeting the Belarusian Sabalenka, who was expected to win her third straight Australian Open. Keys becomes the first player to defeat a No. 1 and No. 2 in a Grand Slam since 2009. 🤯

Australian Open women's champion Madison Keys returned to her career-best ranking on Monday and joins three other American women in the WTA top 10, while men's champion Jannik Sinner maintained his significant lead atop the ATP list.

An American woman is a champion once again. After having to face the two best players in the world -- Iga Switaek and Aryna Sabalenka -- Madison Keys has claimed her first Grand Slam title at the Australian Open. Keys outlasted Sabalenka in the final on Saturday over three sets to accomplish the feat.

Madison Keys and her husband and coach Bjorn Fratengelo, shed tears of joy after her breakthrough Australian Open triumph.

Follow live reaction to Madison Keys’ winning her first Grand Slam title after a thrilling 6-3, 2-6, 7-5 final victory over Aryna Sabalenka

Perhaps they remember her from Junior Orange Bowl tournaments at Salvadore Park and Biltmore Tennis Center in Coral Gables, or from the Crandon Park Tennis Center in Key Biscayne, where 5-foot-10 Keys dazzled spectators with her 114 mph serve as a 14-year-old in the Orange Bowl Under-18s division.

MELBOURNE, Australia -- Australian Open women's champion Madison Keys returned to her career-best ranking on Monday and joins three other American women in the WTA top 10, while men's champion Jannik Sinner maintained his significant lead atop the ATP list.

From winning streaks to prize money milestones and MUCH more, here’s everything the American did Down Under this year.