"It's the first question you're asked, have you ever won it?" - "Slippers" Madden on the Grand National

Aintree Grand National winner Niall "Slippers" Madden joins OTB's John Duggan to look ahead to this year's famous race and explains why it captures the attention like no other race. He also regaled us with tales of Numbersixvalverde, following Tony McCoy and Ruby Walsh and where he got the famous nickname.