The world No. 1 was thrown off by Siegemund's changes in pace and rhythm, but came through in three tight, tense sets.

Watch and follow BBC TV and radio coverage of day nine of Wimbledon (UK only) LIVE: World number one Aryna Sabalenka v Laura Siegemund in quarter-finals Followed by: GB's Cameron Norrie v defending champion Carlos Alcaraz LIVE: Taylor Fritz 6-3 6-4 Karen Khachanov Followed by: Amanda Anisimova v Anastasia Pavlyuchenkova Siegemund has just enough top-spin for control.

Aryna Sabalenka was dragged into a bygone era on Tuesday and tormented for almost three hours on Wimbledon’s Centre Court before finally imposing her 21st-century power game to beat mesmeric Laura Siegemund for a place in the semi-finals.