Usain Bolt celebrates with his national flag after placing third in the men's 100m final during the World Athletics Championships in London on Saturday. Matthias Schrader / AP Photo
Usain Bolt celebrates with his national flag after placing third in the men's 100m final during the World Athletics Championships in London on Saturday. Matthias Schrader / AP Photo

Usain Bolt's third place in farewell race 'doesn't change anything in my career'