Elena Rybakina saved six matches before closing a dramatic victory against Paula Badosa to reach the quarter -finals of the Dubai tennis championship, while number one Aryna Sabalenka fell into a surprising defeat.
Rybakina from Kazakhstan against 6-3 in the second tie-break set, while Badosa also rejected two matches in Rybakina service in 6-5 in determinants.
World number seven remains firm before securing a 4-6 7-6 (10-8) victory 7-6 (7-2) with its first match points after two tiring hours and 49 minutes.
The six points of the match that were saved were the most by the players on the way to the victory of WTA Tour since the victory of Tatjana Maria over Emiliana Arango in Nottingham in June.
Wimbledon 2022 champions will face Sophia Kenin after Americans end the defense of Jasmine Paolini with a 6-4 6-0 victory.
Italian Paolini, runner-up at France Open and Wimbledon last year, struggled in the second set after rolling her ankle and then withdrew from the double.
