The UCI says 11 Russian cyclists will compete in Rio, but three have been withdrawn and a further three may miss out.
When did badminton become an Olympic sport? Who are the favourites for Rio 2016? And what are Team GB's prospects?
Newsbeat looks at how Milos Raonic's powerful serve stacks up against the speeds achieved in other sports.
Chris Bruil says it is 'ridiculous' he cannot accompany Scottish Olympian Kirsty Gilmour to Rio because of accreditation issues.
Audio & Video
The badminton school behind Brazil's Olympic badminton team