Lee Zii Jia continued to revel in his rich vein of form with a second consecutive semi-finals berth after he exacted revenge over Lee Chia-hao in the Swiss Open quarter-finals on Friday.

Zii Jia needed only 37 minutes to beat the Chinese Taipei shuttler 21-12, 21-17 and book a showdown against Japan's Koki Watanabe, in which he will certainly go into that match as favourite against the 37th ranked Japanese.

Should he win, a dream final against top seeded Viktor Axelsen could be on the cards.

The final prospect still looms a long way, but Zii Jia will be encouraged by his performance in Basel so far.

The world number four had lost to Chia-hao at the German Open second round earlier this month, a painful loss that led to a foul-mouthed rant on Instagram.

But Zii Jia did improve significantly after that to reach the All-England semis, and he brought that form to Basel.

As a result, Chia-hao did not stand a chance after meekly surrendering the first game.

Zii Jia could have wrapped up the second game in a more comprehensive manner, but allowed Chia-hao to reduce a massive deficit late on.

He eventually sealed victory to ensure Malaysia's interest in the men's singles.