Daughter of Bills, Sabres owners into all-U.S. quarterfinal in Australia

Jessica Pegula celebrates after defeating Ukraine's Elina Svitolina in their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Feb. 15, 2021. (AP Photo/Andy Brownbill)

MELBOURNE, Australia — Jessica Pegula’s first victory over a Top 10 opponent earned the 26-year-old American her first trip to the quarterfinals of a Grand Slam tournament.