a) Lee Chong Wei
b) Aie Liu Gong
c) Tar Ni Su
d) Chen Peng Soon
Cancer-hit badminton star Lee Chong Wei announced his retirement, ending a brilliant career in which he collected a swathe of honours but never won a world or Olympic title.Lee, who spent a total of 348 weeks as world number one but lost six world and Olympic finals, wept as he called it quits months after suffering a cancer scare.