Massive Manchester United fan and sprint king Usain Bolt was left pretty downbeat last Sunday.
His beloved United were thumped 3-0 by bitter rivals Arsenal -- and it meant the fastest man on the planet also lost a wager.
Bolt bet his Arsenal-supporting friend that Louis van Gaal's men would triumph at the Emirates, with the loser having to wear a shirt from the opposing side. Unfortunately for the Jamaican, United were swept aside in 20 minutes.
To his credit, he kept his side of the bargain and...