(Reuters) -World number two Aryna Sabalenka's hopes of reaching a fourth consecutive Stuttgart Open final ended after a 3-6 6-3 7-5 quarter-final defeat by Marketa Vondrousova on Friday, while champion Iga Swiatek maintained her perfect record at the event.

World number one Swiatek extended her run at the tournament to 10-0 and is now two wins away from claiming a third successive Stuttgart title following her 7-6(2) 6-3 win over Briton's Emma Raducanu.