Aryna Sabalenka reveals her strange pre-match ritual after 25-year-old becomes the youngest woman to reach six consecutive Grand Slam quarter-final at Australian Open

Amelie Mauresmo was the last woman to achieve this feat, in 2005 at the age of 25, and Sabalenka, two months younger, won 6-3, 6-2 in 70 minutes against Amanda Anisimova on Sunday.