Tan Boon Heong-Koo Kien Keat at the prize presentation ceremony at the 2010 World Championships in Paris. - The Star pix by Glenn Guan
PETALING JAYA: Former doubles ace Koo Kien Keat has urged Aaron Chia-Soh Wooi Yik to play it cool.
Kien Keat wants them to take advantage on the ageing Indonesian pair Hendra Setiawan-Mohammad Ahsan in their maiden World Championships final in Tokyo on Sunday (Dec 28).
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