• Professor, Faculties of Kinesiology and Nursing; Director, Running Injury Clinic, University of Calgary
Jamaica’s Usain Bolt lays on the track after suffering a hamstring injury in the final of the men’s 4x100m relay during the World Athletics Championships in London on Aug. 12, 2017. (AP Photo/Frank Augstein)

Usain Bolt and Andre De Grasse: Hamstring injuries explained

Hamstring injuries played a major role at the 2017 world track and field championships. Without proper recovery, a hamstring injury can be career ending for some athletes.

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