The title-holder brushed aside Denmark’s unseeded Ramus Gemke 21-19, 21-8 and faces Taiwan’s world No 2 Chou Tien-chen in Sunday’s championship decider.

Chou ensured a miserable day for Denmark by easing past the fifth-ranked Anders Antonsen 21-10, 21-12 in their semifinal.

Reigning champion and home hope Chen Yufei will play Japan’s world No 2 Nozomi Okuhara for the women’s crown.

Okuhara lost the first game but then levelled with world No 1 Tai Tzu-ying and reached the final after the Taiwanese was forced to retire from the deciding game.

“It’s my left knee, I haven’t been feeling good since the French Open (last month),” said Tai.

“The injury has persisted this week and I have not been playing in my best condition here.”

In the other women’s semifinal, fourth-ranked Chen was also forced to recover from going behind on the way to a 20-22, 21-8, 21-17 victory over the unseeded Michelle Li of Canada.