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Shortly the world’s top athletes descend on Doha for the World Athletics Championships, so we are putting the spotlight on some of the biggest stars of the sport, finding out what drives them on and off the track.

Bahamian Shaunae Miller Uibo's photo finish gold medal winning moment in the 400 metres was one of the most iconic images from the Rio Olympics in 2016.

With just a few feet to go, Miller Uibo dived for the finish line – to shock favourite Alyson Felix by pipping her to Olympic gold.

Photo: Shaunae Miller-Uibo of The Bahamas poses after winning the women's 200 metres (Getty Images)