Justin Gatlin cries after missing out on qualifying for his final Olympics

An emotional Justin Gatlin broke down in his post-race interview after missing out on qualifying for what would be his fourth Olympic Games.

39-year-old American's hopes of returning to an Olympics came to an end when he pulled up lame about halfway through 100m men's final at US trials on Sunday (20 June).

Gatlin finished last in 10.87 seconds.

He told media after race that he had tweaked his hamstring in semi-finals.

former Olympic champion has been embroiled in controversy throughout his career.

Gatlin had been banned twice from international competition after failing drugs tests in 2001 and 2006.