Diamond League: GB's Doyle given second place in 400m hurdle photo-finish

Great Britain's Eilidh Doyle is awarded second place in the 400m hurdles after a photo-finish, despite being given the same time as the USA's Cassandra Tate and appearing to cross the line before Tate.

Watch more: Kim Collins wins 100m with brit CJ Ujah finishing third in 100m

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