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Star athlete Jackie Joyner-Kersee on her recipe for success

In a conversation with BBC presenter Katty Kay, US legendary track and field athlete Jackie Joyner-Kersee shares memories of how she started long jumping as a child using empty crisp bags to carry sand from a public park to her garden, and how ultimately sport is the "great equaliser".

This clip is part of the Influential with Katty Kay series.