Olympics
Bolt was previously stripped of an Olympic gold medal due to the actions of a teammate.
Luke Davies
Despite being born in San Francisco, California, three-time Olympic gold medallist Gu represents China in freestyle skiing.
Luke Davies
The opening ceremony will take place on Friday.
Jack Kenmare
Jutta Leerdman followed up making Olympic history by breaking a record previously set by Cristiano Ronaldo.
Josh Lawless