New York - South Africa’s Kevin Anderson crashed out of the US Open on Sunday after losing to Austria’s Dominic Thiem in the round of 16.
The ninth-seeded Thiem won in straight sets, 7-5, 6-2, 7-6 (7/2) in two hours and 36 minutes.
Fifth-seed Anderson, who reached last year's final, headed into the encounter with a 6-1 win-record against Thiem but came unstuck on this occasion.
Thiem was sublime on his own serve and never faced a break point in the match. He also matched Anderson in the aces count (7) and hit 41 winners compared to Anderson’s 40.
He also broke the tall South African’s serve three times and made only 13 unforced errors, compared to Anderson's 27.
Thiem will next face defending champion Rafael Nadal, who beat Nikoloz Basilashvili from Georgia 6-3, 6-3, 6-7 (6/8), 6-4.
US Open results on Sunday, the seventh day of the 2018 tournament at Flushing Meadows (x denotes seeded player):
Rafael Nadal (ESP x1) bt Nikoloz Basilashvili (GEO) 6-3, 6-3, 6-7 (6/8), 6-4
Dominic Thiem (AUT x9) bt Kevin Anderson (RSA x5) 7-5, 6-2, 7-6 (7/2)
Juan Martin Del Potro (ARG x3) bt Borna Coric (CRO x20) 6-4, 6-3, 6-1
John Isner (USA x11) bt Milos Raonic (CAN x25) 3-6, 6-3, 6-4, 3-6, 6-2
Serena Williams (USA x17) bt Kaia Kanepi (EST) 6-0, 4-6, 6-3
Karolina Pliskova (CZE x8) bt Ashleigh Barty (AUS x18) 6-4, 6-4
Sloane Stephens (USA x3) bt Elise Mertens (BEL x15) 6-3, 6-3
Anastasija Sevastova (LAT x19) bt Elina Svitolina (UKR x7) 6-3, 1-6, 6-0