New Zealand's Paul Coll has won the London Squash Classic, beating Egypt's Mostafa Asal for his 25th PSA tour title.
The match was in the fourth game with Coll leading 8-1 when Asal retired.
In a one-sided first game, Coll took the lead with an 11-8 win, though the top seed dropped the second 13-11.
The Kiwi retook the advantage as he won the third 11-7.
Asal was visibly struggling in the fourth, and though the Egyptian initially tried to continue, he was eventually forced to retire hurt with the score at 8-1 to Coll.
"I'm stoked! Very happy to back it up, all the consistency I've been looking for this season," said Coll.
"I really enjoy playing in London. I get a really good home feeling playing here. I've got my coach, family and friends here. The atmosphere was wicked all week."
Coll said he hoped Asal was alright.
"It was a real battle today and he really took it to me and I had to be on my mettle.
"It was hard, fast squash. Injuries like that happen and I hope it's not bad. I'm sure we'll have another battle in a couple of weeks."