Jamaica

EghtesadOnline: As he blazed through the Rio Games, winning an historic third batch of three sprint gold medals, Jamaica 's Usain Bolt was clear this is his last time on the Olympic track, where he feels he has nothing left to prove.

EghtesadOnline: Usain Bolt drew down the curtain on his brilliant Olympic career by securing a sweep of the sprint titles for a third successive Games when Jamaica successfully defended the 4x100 meters relay crown in Rio on Friday.