Who will win the 2012 Grand National?

BBC Sport's Clare Balding takes a look at the runners and riders to see who might win Saturday's Grand National at Aintree, with Richard Dunwoody and Richard Pitman.

1974 Champion Hurdle winner Richard Pitman and two-time Grand National winner Richard Dunwoody give their opinions on who could cause a surprise and where the sensible money should be placed on ahead of the prestigious hurdle race.

A forty-strong line-up will contest the race on Saturday afternoon over four miles and 30 fences, watched by 600 million people worldwide.