The field is again dominated by Irish trainer Mullins, with the three-time winner having nine horses in the field.
Joining I Am Maximus and Nick Rockett are last year’s third-placed Grangeclare West, Spanish Harlem, Lecky Watson, Champ Kiely, High Class Hero, Captain Cody and Quai De Bourbon.
McManus is seeking a record fourth victory in the race and has leading hopefuls Iroko and Jagwar – both trained by Oliver Greenall and Josh Guerriero.
Johnnywho is another runner for McManus, alongside Spillane’s Tower, who also holds an entry for the Aintree Bowl on Thursday so may yet drop out of the National.
Oscars Brother and Perceval Legallois, who will be ridden by Harry Cobden after falling last year, are also representing McManus.
I Am Maximus is bidding to become the first horse to carry top weight to victory since triple winner Red Rum in the 1970s.
Nick Rockett will attempt to match Tiger Roll’s feat of back-to-back wins in 2018 and 2019. The previous horse to do that was Red Rum.
Gordon Elliott, who has also trained three National winners, has five runners with Gerri Colombe, Firefox and Favori De Champdou – the beaten favourite in the Cross Country Chase at the Cheltenham Festival – towards the top of the weights.
Approximate odds: 7-1 I Am Maximus, 9-1 Grangeclare West, 10-1 Jagwar, 12-1 Iroko, Panic Attack, 14-1 Haiti Couleurs, Johnnywho
