Jockey Danny Cook has been given a warning by the Aintree stewards on Saturday evening after he took it upon himself to wave the riders around Becher’s Brook on the second circuit of the Grand National, Racing UK report.

Cook was leading the highly anticipated race early on, on board I Just Know, before falling at Becher’s on the first circuit.

Alex Livesey/Getty Images Sport

Green screens were put up around jockey Charlie Deutsch, as he received medical attention after also suffering a fall.

Becher’s Brook was then bypassed on the second circuit, with Cook doing his best to ensure all remaining riders knew to dodge the jump by waving a flag, something Ruby Walsh did in 2015 after a heavy fall.

A stewards report after the race, gave a warning to Cook.

An enquiry was held to ascertain why Danny Cook, the rider of I Just Know, which had fallen on the first circuit, proceeded to wave the riders around Becher’s Brook on the second circuit. He was reminded of his responsibilities to not become involved in these procedures.

The race watched by 600 million across the world, was eventually won by Tiger Roll, with 38-year-old jockey Davy Russell claiming his first National winner.