Keshorn Walcott enters Olympic competition tonight for Trinidad and Tobago in a position different from any other athlete.
It will be the first time in 36 years that an athlete from Trinidad and Tobago is competing as a defending champion.
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The last time this happened was when Hasely Crawford entered the 1980 Olympics as the defending champion in the 100 metres final.
Walcott took gold in the London Olympics in 2012, throwing 84.58 metres, a new national record.
He will throw in Group B around 8.55 pm.
Below is a look back at his victory in 2012.
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