Sports star commuter quiz: Which sports stars use public transport?

Forget private jets, high-powered sports cars and chauffeur-driven limousines - sometimes even the world's biggest athletes must travel on public transport.

A footballer taking the tube, an Olympic medallist on the bus, the United States basketball team on a train - you never know who you might bump into on your journey to work.

Take our sports-themed commuter quiz and see how many questions you get right.