More Buck's will have his jumping qualities put to the test when he tackles the famous Grand National fences in the Betfred Grand Sefton Handicap Chase at Aintree on Saturday.
Paul Nicholls' six-year-old is one of 23 entries, alongside stablemates As De Mee and Ruben Cotter, left in the race at the latest confirmation stage.
The Andy Stewart-owned More Buck's has won two out of three, most recently at Fontwell earlier this month, since he returned in October from a lengthy spell on the sidelines.
Stewart said: "More Buck's is going to go over the National fences in the Grand Sefton.
"If he is going to take his place in the Topham later on he has got to give the big fences a go.
"His style of running should suit them. We've schooled him over the big fences at home and we are quite happy with that."
More Buck's is as short as 10-1 about winning the Grand Sefton.
Venetia Williams has left in last year's winner Bennys Mist, while runner-up that day Seventh Sky could renew rivalry for Charlie Mann.
Witness In Court unseated his rider at the sixth fence 12 months ago and is one of two entries for Donald McCain, who could also saddle Federici.
David Pipe, who won the race in 2014 with Poole Master, is represented by leading ante-post contender La Vaticane, while trainer Nigel Twiston-Davies has given an entry to recent Cheltenham scorer Astracad.
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Source: At The Races