A leading horse racing expert has thrown his backing behind a 100/1 shot in this afternoon’s Grand National ... West, can come second in the big race, with Iroko his tip to come out on top.

Stumptown (right) will be looking to back up his Cross Country Chase success with another strong run at Aintree - PA/Adam Davy The most exciting jump race off them all, the Grand National ...

His top tip is Perceval Legallois, who sports the famous green and gold colours of three-time Grand National-winning owner ... 4 Grangeclare West (IRE) 9-11-8 Cheveley Park Stud Willie Mullins ...