Second seed Nick Matthew set up a quarter-final meeting with Egyptian seventh seed Wael El Hindi at the ISS Canary Wharf Squash Classic.
Matthew has returned from an injury lay-off with an ankle problem
Matthew recovered from a game down to beat fellow Englishman Bradley Ball 8-11 11-7 11-9 11-8.
El Hindi easily defeated English qualifier Chris Simpson 11-8 11-8 11-5 in their first-round meeting.
Scotland's fifth seed John White will take on Wales' unseeded Alex Gough in the last eight.
White got the better of Davide Bianchetti of Italy 11-3 6-11 4-11 11-3 11-8 while Gough defeated England's Stacey Ross 11-3 2-11 11-2 11-7.
Matthew played with his right ankle heavily strapped after missing two months through injury.
"The ankle is fine," he said. "It's no problem now but I've been advised to keep the strapping on it for a while.
"It was good to get some matches under my belt in Malaysia and I am sure it will be OK against El Hindi."