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19 year-old Dina Asher-Smith wins the women’s 100m at British Championships in Birmingham in 11.08 seconds.

Former sprint athlete Darren Campbell couldn't praise Asher-Smith enough claiming that she can challenge the best in the world. He commented on her technique which he said was flawless and the belief, strength and confidence she has could make her a world champion.

This clip is from 5 live sport on Sunday 5 July 2015.