World Championships 2015: Michael Johnson on Great Britain relay team

BBC Sport's Michael Johnson and Daley Thompson analyse were it went wrong for Great Britain in the men's 4x100m relay final in Beijing.

Johnson believes James Ellington slowed down before the final baton change - leading to the mistake that saw the team fail to finish.

After the race, Richard Kilty spoke to the media insisting if the team was consistent they would have won a medal.

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