Positive news followed hot on the heels of the Grand National that all horses had returned safely to the stables after the race, with no. The official field of runners for the Grand National is finalised in the week before the race (8th April ). Until then we'll feature the leading horses in the. The Last Samuri heads the final field of 40 runners in Saturday's Randox Health Grand National at Aintree. Sportsmail's Sam Turner analyses.