Power Hoping For A Regal Encore At Aintree Jockey Robbie Power is aiming for a slice of racing history on Regal Encore in Saturday's Randox Health Grand National. Winner of the Gold Cup at Cheltenham last month on Sizing John, Power now has his sights on the biggest prize of them all on Anthony Honeyball's chaser. Back in 2007 Power tasted success on Silver Birch, riding then for a relatively unknown trainer in Gordon Elliott, who is now on the verge of being crowned champion trainer for the first time. A lot of water has passed under the bridge since then, but Power is hoping the unique Aintree fences rekindle his mount, as they have done many others. "His form is up and down, but he could run a big race," said Power. "He is an outsider and I'll know by the time I get to Becher's first time round whether he is enjoying it and if the fences have sparked him into life. He has the ability to run a big race. "The Grand National is the race that every jockey wants to win. It was an unbelievable day for me and when you walk back through the gates, it all comes flooding back to you." No current jockey has a better record over the fences than amateur Sam Waley-Cohen and he rides Neil Mulholland's The Young Master. "With The Young Master, this has been an almost 100-week plan to get him here. The last two years have been about this week so I'm thrilled to actually be here," he said. "He has the make-up of a Grand National horse but last year he was just a bit too young so Neil was very adamant that seven-year-olds have a very bad record in the race and he needed another year. "He is a hardened handicap chaser now and that is a skill which should play out well for him - he has loads of scope." The Last Samuri heads the final field of 40 runners. Kim Bailey's nine-year-old was a gallant runner-up 12 months ago, but faces a tougher task this year off a 12lb higher mark. Jonjo O'Neill's More Of That is next on the list and is one of three runners for owner JP McManus along with Cause Of Causes and Regal Encore. The Gigginstown House Stud silks, carried to victory last year by Mouse Morris' Rule The World, will be sported by five runners this year in Roi Des Francs, Wounded Warrior, Measureofmydreams and the Morris pair of Thunder And Roses and Rogue Angel. A former Cheltenham Gold Cup winner lines up in Lord Windermere, while last year's RSA hero Blaklion represents Nigel Twiston-Davies and Noel Fehily. Paul Nicholls has five representatives as he looks to win a second National. Saphir Du Rheu, Le Mercurey, Just A Par, Vincente and Wonderful Charm will all take their chances for the Ditcheat handler. David Pipe will saddle Vieux Lion Rouge, one of the favourites, Ballynagour, La Vaticane and Doctor Harper.