Alvarado finished in fourth place in the Grand National at Aintree last year . Fergal O'Brien says the horse is in better shape this time around . The race was won by Mr Prospector, who beat his rival by a neck to win £300,000 and become Britain's first ever winner of the race.
Alvarado finished in fourth place in the Grand National at Aintree last year . Fergal O'Brien says the horse is in better shape this time around . Alvarado has run only once this season at Doncaster in February .