GB duo miss out on 400m hurdles medals

Czech hurdler and Olympic bronze medallist Zuzana Hejnova leads from almost start to finish to win her first world title in 52.83 seconds.

There was disappointment for Great Britain, with Eilidh Child fifth and Perri Shakes-Drayton, who suffered a knee injury, seventh.

USA's Dalilah Muhammad took home silver with team-mate Lashinda Demus third in the World Championships in Moscow.

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