LEE Chong Wei reclaimed his World No 1 spot from nemesis Lin Dan of China after capturing his third Japan Open title in Tokyo yesterday.
But men's doubles Koo Kien Keat-Tan Boon Heong were sent packing by South Korean back-up pair Kim Ki Jung-Kim Sa Rang.
Chong Wei secured a 21-18, 21-18 win over Thai veteran Boonsak Ponsana in 41 minutes to add to the titles he won in 2007 and 2010.
However, Kien Keat-Boon Heong were toothless against Ki Jung-Sa Rang as the Malaysians lost 21-16, 21-19 in just 32 minutes.
Chong Wei was delighted with yesterday's victory after the frustration of losing to Lin Dan in the Olympic final last month.
Lin Dan and his teammates boycotted the Tokyo tournament following a diplomatic row between China and Japan.