Mick Fitzgerald visits James Motherway's stables in County Cork where Grand National contender Blue Sea Cracker is hoping to be the first mare to win the race in 50 years.
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JOHN SMITH'S GRAND NATIONAL Aintree, Saturday 9 April, 1615 BST
Coverage: Live on BBC TV, HD, Radio 5 live, online
Other races also across the BBC 7-9 April