Mo Farah had to dig deep for World Championships 5,000m win

Mo Farah reflects on his achievements after becoming only the second man in history to complete an Olympic and world 'double double' in the 5,000m and 10,000m.

Speaking with Brendan Fraser, Farah says he was not going to let all his hard work go to waste as he was pushed all the way in the closing stages of the race.

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