2020-Present Rublev’s winning run began at last year’s Hamburg European Open. If he is to keep the streak alive this week, he will need to defeat the man he beat in the final of that event in tomorrow’s semi-finals: Tsitsipas. “I will try to do as much as I can to be ready for tomorrow… Stefanos also had two tough matches [this week],” Rublev said. “Yesterday he had three sets and today he had three sets. Now he has to play doubles. It is not easy.” Earlier in the day, Tsitsipas survived his second three-set match of the week to reach the last four in Rotterdam. The Greek recovered from 1-3 down in the decider to beat Rublev’s countryman Karen Khachanov 4-6, 6-3, 7-5. Tsitsipas saved a match point to defeat Rublev 6-1, 4-6, 7-6(6) in their most recent ATP Head2Head encounter (Tsitsipas leads 3-2) at last year’s Nitto ATP Finals.