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Four-time Olympic medallist Ato Boldon says Usain Bolt's generation ended the "funeral" atmosphere in the call room before big races.

Boldon, who won medals in the 100m and 200m, says athletes he raced against did not talk to each other before competing.

He said: "The first time I saw a Usain Bolt call room I thought 'OK, so that is different.' Their generation, they shook hands. Bolt would be clowning with Asafa Powell and I would just look and go 'wow!'"

This clip is taken from 5 live Sport on Tuesday 1st August, 2017.