Top seed Alexander Zverev edged out South African Lloyd Harris 6-4, 3-6, 6-0 to reach the Cologne ATP semi-finals on Friday.
Harris struggled with a leg injury in the final set of the match, something that gave world No.5 Zverev an advantage.
“I have got to do a better job of keeping my focus until the end of a match. I relaxed a little bit and then he picked up his game,” Zverev said after the match.
Zverev will face Alejandro Davidovich Fokina in his third semi-final of the year.
The Spaniard beat Dennis Novak of Austria 6-3, 2-6, 6-3.
Canada’s Felix Auger-Aliassime defeated Radu Albot 6-3, 6-0 to reach the last-four and will face Roberto Bautista Agut, who downed Poland’s Hubert Hurkacz 7-6 (7/4), 5-7, 6-0.
Aryna Sabalenka began her quest for a third straight title at the US Open as…
Carlos Alcaraz ended a four-and-a-half month injury exile with a resounding 6-4, 6-4, 6-4 defeat…
Williams has lost her last 15 matches as a wild card, with her last victory dating…
Novak Djokovic hit the wall as the 24-time Grand Slam winner vomited at the back…
Third seed Jessica Pegula got up and running on Sunday's opening day at the US…
Former finalist Casper Ruud made a last-minute pull out on Sunday as the US Open began,…