“It is a clash that really whets the appetite. It is what racing is all about, great horses that are champions over two different distances like this clashing,” Kinane said.
“One thing that is for sure is we will know the champion three-year-old after Wednesday.”
Kinane expects Golden Horn’s proven stamina to win the day.
He said: “With the pacemaker (Dick Doughtywylie) in the race for Golden Horn that makes it very straightforward for him as he will bring Frankie (Dettori) as far as he can down the straight.
“He will be the one to make the first move as his horse has stamina in abundance and he will try to get Gleneagles at it and get him into unknown territory and out of his comfort zone.
“Stamina will get asked at York as they get racing a long way out, but it is a very fair track and one of the best there is.
“It is a question of if Gleneagles will stay, so I would go for the favourite as he is proven over the track and distance, his stamina is assured and he is a straightforward horse.”
Murtagh expects an epic duel but shares Kinane’s view that stamina will tell.
He said: “It should be a very straightforward race as there will be a good pace. I expect Golden Horn to sit in the box seat in fourth or fourth, with Gleneagles following him through.
“There is a very good chance of Gleneagles staying given his racing style as he is not keen so he will give himself every chance of staying and he might even improve for it.
“But it is a long way down the straight at York and I see Frankie making sure he puts his stamina to the test.
“It is a very close call. Aidan O’Brien has a good record in the race, but the race could just be set up for Golden Horn. There is not much to chose between them, but on form I would say that Golden Horn’s is a little bit better.”