A number of sports stars have congratulated Usain Bolt on his 200m Olympic success this evening.
The Jamaican sprinter added the 200m crown to his 100m gold and became the first man to ever defend the Olympic 200m title this evening.
Read a selection of the comments from Twitter below.
"Wow wow he is unreal is not a human he is a perfect machine #legendBolt."
Footballer Carlos Cuellar
"Did bolt do 5 press ups cause he didn't beat the record??? Hahaha #machine"
QPR's Anton Ferdinand
"Jamaica 1 2 3....wow!! Jamaica must be jumping right now! @usainbolt The Best to ever do it."
Anton's brother Rio
"Congratulations to @usainbolt for Gold, @yohanblake for Silver and @warren_weir for Bronze in the Men's 200m."
Bolt's fellow Jamaican sprinter Asafa Powell
"Bolt..... Simply unbelievable!"
German tennis player Sabine Lisicki