Aryna Sabalenka was forced to dig deep in the Wimbledon quarter-finals on Tuesday, as the world No 1 fended off a spirited challenge from 37-year-old doubles specialist Laura Siegemund.
Sabalenka, a two-time grand slam champion, continues her pursuit of a first Wimbledon title, having fought from behind to see off Siegemund 4-6, 6-2, 6-4 on Centre Court.