The American's journey toward winning her first major makes defending the crown feel like less of a mountain to climb.

Madison Keys lost in the Adelaide International quarterfinals to rising Canadian talent Victoria Mboko on Thursday, less than a week away from the start of her Australian Open title defense.

Jessica Pegula and Madison Keys have both been struck by one WTA player in particular at the start of the 2026 season. Two titles have already been won on the WTA Tour in 2026, including world number one Aryna Sabalenka lifting the Brisbane International for a second consecutive year.

Madison Keys’ husband and coach, Bjorn Fratangelo, revealed that he spoke with Jannik Sinner’s coach during last year’s Wimbledon Championships.

Madison Keys planeaba entrar al túnel de jugadores de la Arena Rod Laver en un momento tranquilo cuando nadie estuviera mirando, y tomar una foto de su nombre junto a los otros campeones del Abierto de Australia.

Victoria Mboko has stormed into the semifinals of the Adelaide International after knocking out Keys. Mboko defeated Australian Open champion Keys 6-4, 4-6, 6-2 in the quarterfinals of the WTA 500 tournament.

After three straight three-set matches this week, Victoria Mboko ended Madison Keys’ title defense to reach the Adelaide semifinals, with Mirra Andreeva also advancing later in the day

Madison Keys says the experience "definitely helps" against the younger players and reveals she still perfectly remembers one match where she got "veteraned out" by the older rival. On Wednesday, the American tennis star defeated 18-year-old Tereza Valentova 6-4 6-1 in the Adelaide round-of-16.

Reigning Australian Open champion Madison Keys has flagged some additions to her game as she returns to Melbourne Park.

Madison Keys is known for her athleticism, power and longevity, all of which are directly attributed to a tireless work ethic. Ahead of her Australian Open defense, she shared one of her go-to workouts for power and strength.