Usain Bolt, the greatest sprinter in modern times, said he plans on retiring after running his final races this week at the world championships in London.
Last Saturday, in what everyone expects was his final individual race, Bolt had a bad start in the 100m and had to settle for a bronze medal. On Saturday, August 12, Bolt is slated to run in his last race overall, representing Jamaica in the 4x100m relay finals.
Read more at http://time.com/money/4889506/usain-bolt-retires-career-earnings-net-worth/