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

Aryna Sabalenka battles from set down to beat unseeded German Laura Siegemund in two-hour-and-54-minute match; she meets 13th-seeded American Anisimova in semi-finals; Follow scores, reports and our d

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.