Dominic Thiem beats Andrey Rublev to qualify for Thiem's 7 semi-finals

The world No 3, and tournament host, is now assured of a place in the semi-finals.

Thiem started positively, breaking in the first game with his fourth break-point opportunity. Rublev got back on level terms at 2-2 but couldn't edge ahead and Thiem broke again to move 6-5 ahead.

The Austrian won the next game to clinch the set and got the first break in the second set to lead 4-3.

Rublev spurned a chance to break back immediately and Thiem took his third match point to seal victory.

World No 8 Matteo Berrettini beat Roberto Bautistia Agut 6-4, 6-3 to ensure he will finish top of Group B following yesterday's win over Dennis Novak.

Bautista Agut experienced his first loss after beating Karen Khachanov on Tuesday and will now face Novak to see who secures second place.

Novak responded to his opening defeat in impressive style as he swept past Khachanov 6-1, 6-4 to eliminate the Russian from the tournament.

Jan-Lennard Struff also secured his first win of the event in Group A as he won 6-4, 6-4 against Casper Ruud, who has lost both of his matches.

Matteo Berrettini (ITA) bt Roberto Bautista Agut (ESP) 6-4 6-3

Dennis Novak (AUT) bt Karen Kachanov (RUS) 6-1 6-4

Jan-Lennard Struf (GER) bt Casper Ruud (NOR) 6-4 6-4

Dominic Thiem (AUT) bt Andrey Rublev (RUS) 7-5 6-4