Who is Madison Keys, who won 2025 Australian Open?

Madison Keys, who defeated two-time defending champion Aryna Sabalenka in 2025 Australian Open final, was born in 1995 in Rock Island, Illinois. Keys has three sisters and her mother is a lawyer. She started playing tennis at the age of four and made her professional debut in 2009 aged 14. Keys won her first title on ITF circuit in 2010.