What Malaysian badminton player held the number one worldwide ranking and played at the 2016 Olympics?
Sören Opti:  He competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil. Sören Opti:  He lost to both Lee Chong Wei of Malaysia and Derek Wong Zi Liang of Singapore during group play and did not advance further. Lee Chong Wei:  As a singles player, Lee was ranked first worldwide for 199 consecutive weeks from 21 August 2008 to 14 June 2012.
i don't know