Grand National: Big Buck's breaks winning record

Big Buck's wins the Liverpool Hurdle on the opening day of the Grand National meeting at Aintree, the horse's 17th consecutive victory.

The Paul Nicholls-trained horse, ridden by Ruby Walsh, breaks the modern-day jumps record of Sir Ken.

The nine-year-old maintained his unbeaten record over hurdles in England, winning the Grade One event for the fourth time.

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