Dominic Thiem has won another lengthy match to reach the fourth round of the US Open.
The No.9 seed beat American Taylor Fritz 3-6 6-3 7-6(5) 6-4 in a match that lasted three hours, 19 minutes on Friday.
Each of the last two sets took more than an hour before the Austrian moved on to a match-up with either 2017 US Open runner-up Kevin Anderson or Denis Shapovalov.
Thiem won a five-set match that lasted three hours, 34 minutes against another American, Steve Johnson, in the previous round.
Georgia’s Nikoloz Basilashvili also advanced after beating Argentine Guido Pella 6-3 6-4 1-6 7-6 (4).
Also on Friday, first seed Rafael Nadal is playing Russia’s Karen Khachanov.