Britain’s Jack Draper was pressured to retire within the third set of his Mexican Open semi-final in Acapulco.
The 22-year-old had therapy from the physiotherapist and match physician within the second set in opposition to Australian defending champion Alex de Minaur.
De Minaur had taken the opening set 6-3 earlier than the British quantity three got here again to win the second 6-2 because of some robust returns.
Draper was trailing 4-0 within the decider when he withdrew from the match.
The Australian world quantity 9 wished Draper “a speedy restoration”.
De Minaur added: “Regardless that I dropped that second set, I knew he was hurting from then and I simply informed myself to convey up the depth, try to get a head begin within the third set and make it a little bit bit more durable for him.
“He is a hell of a participant, a hell of a expertise and I hope it is nothing too severe.”
De Minaur will play Norwegian Casper Ruud within the closing after he defeated Denmark’s Holger Rune 3-6 6-3 6-4.