Charlotte Dujardin: Why did the whipping video come out now?

Team GB's Charlotte Dujardin could have become the country's most-decorated female Olympian in Paris.
But she's withdrawn from the dressage after a video emerged of her whipping a horse 24 times in one minute - which she says is "out of character" and an "error of judgment".
Some have questioned why the video has emerged now - at least two years after it was filmed - with claims the timing is "suspicious" days before the Paris games.
On the Sky News Daily, Niall Paterson speaks to sports correspondent Rob Harris. He's also joined by dressage rider and trainer of Olympic and Paralympic medallists Pammy Hutton to discuss typical equestrian practices and techniques.
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Editors: Paul Stanworth