Usain Bolt & Yohan Blake Win 100m Heats - London 2012 Olympics - YouTube

https://www.youtube.com/watch?v=Z86xysw5Ncc

Usain Bolt, Tyson Gay, Asafa Powell, Yohan Blake, Ryan Bailey, Justin Gatlin and Dwain Chambers all win their 1st heats to progress in the 100m event at the ...