Bulgarian Grigor Dimitrov saw off Stefanos Tsitsipas 6-7(5), 6-4, 6-3 in a tense battle to complete the quarterfinal line-up at the Vienna Open.

Dimitrov lost the opening set, despite leading 5-0 in the tiebreaker, before winning there second and third to ease through.

“It’s never easy to come out of a situation like that,” Dimitrov said of that first first set encounter.

“I kept on believing, I kept on doing the right things, stayed in the match, which was the most important thing.”

Dimitrov will play Daniel Evans, who came back from a breakdown in both sets to beat Austrian wild-card entry Jurij Rodionov 7-5, 6-3.