Ahead of the World Athletics Championships, kicking off in London on Friday, South African track star Wayde van Niekerk took some time out of his preparations to answer some quick fire questions.

The Olympic champion is looking to double up in London, where he is competing in the 200m and 400m events.

Watch the affable 25-year-old make his picks in the video below: Conor McGregor or Floyd Mayweather? Lane 1 or Lane 8? Michael Johnson or Carl Lewis? Some of his answers might surprise you.