World Athletics Championships 2017: Usain Bolt 'more vulnerable than ever' - Michael Johnson

Name: World Athletics Championships 2017: Usain Bolt 'more vulnerable than ever' - Michael Johnson
Uploaded: 2017-08-04T10:32:52.000Z
Duration: 1 min 35 s
Description: Michael Johnson says Usain Bolt is "more vulnerable than ever" to defeat at the 2017 World Athletics Championships.

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Michael Johnson says Usain Bolt is "more vulnerable" than ever at the 2017 World Athletics Championships, but says he would not bet against the Jamaican to retain his 100m world title in London.

WATCH MORE: Relive Bolt's historic 100m win in 2009

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Athletics

4 August 2017