Trainer - T O'Brien
Jockey - David Mullins
Three starts this season - most recently finishing third in an action-packed Racing Post Arkle Challenge Trophy at the Cheltenham Festival.
Ornua and Kalashnikov - two horses who did not complete have both come out and won Grade One's at Aintree, so perhaps Articulum along with a couple of others took advantage of vacant positions in the places.
That said, this nine-year-old made a useful debut at this venue back in December, and he has grown and improved since then.