Stefanos Tsitsipas holds off Auger-Aliassime 6-2, 5-7, 6-1 to reach the final four.

Stefanos Tsitsipas holds off Auger-Aliassime 6-2, 5-7, 6-1 to reach the final four. 1

Stefanos Tsitsipas secures a fifth win in a row against Auger-Aliassime, battling past him 6-2 5-7 6-1 to reach back-to-back Cincinnati semi-finals.

The reigning Monte-Carlo champion secured a 6-2 5-7 6-1 victory over the 12th seed, fighting off a comeback after Auger-Aliassime took a close second set. The Canadian was undone by poor serving, as he committed seven double faults while winning only 38 of 55 points on his first serve.

Tsitsipas improves to a 5-2 record against the 21-year old, having won their last five consecutive meetings.

The Greek star will play Alexander Zverev as he beat off Ruud 6-1 6-3 only a moment ago.

This will set up a ninth career meeting with Tsitsipas in the Cincinnati semis