Further Personal Information
||Kuala Lumpur, MAS
||Chinese, English, Malay
Sport Specific Information
|When and where did you begin this sport?
||He began at age seven.
|Why this sport?
||"I was heavily influenced by my siblings and I guess since then I've started liking it."
|Name of coach
||Yoo Yong Sung [personal] Tan Kim Her [national]
|Coach from what year?
||Shopping, badminton, listening to Western pop music. (baike.baidu.com, 26 Apr 2012; badzine.net, 08 Oct 2009)
|Memorable sporting achievement
||Winning the 2006 Asian Games and 2007 All England tournament. (badzine.net, 08 Oct 2009)
|Most influential person in career
||His siblings. (badzine.net, 08 Oct 2009)
|Hero / Idol
||Usain Bolt. (badzine.net, 08 Oct 2009)
In 2008 the Malaysian national doubles coach Rexy Mainaky raised the issue with Koo that his reputation for partying was affecting his performances on court. This came after he and partner Tan Boon Heong were knocked out in the first round of the 2008 All England tournament, thus failing to defend their 2007 title. Mainaky said he had spoken to Koo several times, voicing concern over 'rumours' that he was distracted by women and excessive partying. (Reuters, The Straights Times, 18 Mar 2008)