Winning trainer Nicky Henderson on BBC Radio 5 Live Sports Extra: "You wouldn't know what you're doing with him because he's got such a wonderful way of racing - he's just cruises in such a low gear. He is doing nothing but he just tracked the furious pace. It is all so easy for him and then you press a button. The thing you couldn't believe is that Jonbon, who is a very good horse, finished so far behind him.

"Constitution Hill looked like a dope at home at the start of the season, but Barry Geraghty sent me a picture of his three-year-old on him - he's always been relaxed.

"I always said I'd settle for one winner, but I won't be settling for one now!"

The second race also looks a tough one for the punters. The Arkle is generally won by a short-priced favourite - with the likes of Altior, Footpad and Shishkin all obliging in the last five years - but this year looks more tricky.

It could be one for Britain though with Edwardstone - who has come on leaps and bounds over fences this year, winning his last four starts - expected to go off favourite for Alan King, with Tom Cannon on board.

His challengers are dominated by the Irish though with Gordon Elliott's Riviere D'Etel generally around the 4-1 mark, before three Willie Mullins horses in Blue Lord - who has also won his last three starts - Saint Sam and Haut En Couleurs.

Henry De Bromhead may also have a sneak with Coeur Sublime fancied to run a big race at double-figure odds.

Image source, Getty Images

Shallwehaveonemore is being attended to behind green screens after a fall at the final flight in the first race. Fingers crossed the horse is okay.

Winning jockey Nico de Boinville on BBC Radio 5 Live Sports Extra: "It couldn't have gone any better if I'm honest. I wasn't worried about false start at all - it just told me there would be a lot of pace so to be on the button.

"He's a very straightforward horse. You just have to sit and point. The first two hurdles were probably the quickest he's ever gone. I probably got there a bit earlier that I wanted to but he was just carrying me there.

"It was dead to the world last year and it was a very strange feeling. It's fantastic to everyone back and to feel the crowd's emotion."

An incredible start to the day and there's six more races to come.

Next up is the Arkle Challenge Trophy.

'It's a kind of magic' plays over the racecourse tannoy.

And that was magical from Constitution Hill. Victory by TWENTY TWO lengths from stablemate Jonbon and would you believe it, a one-two for Great Britain courtesy of Nicky Henderson

Jane Mangan
Former jockey on BBC Radio 5 Live Sports Extra

It is a good start for Britain, but don't just go gloating yet - we've got a long way to go!

It's disappointing that Dysart Dynamo came down, but it's hard to see how he would have kept up with the winner. He was awesome.

Winning owner Michael Buckley on BBC Radio 5 Live Sports Extra: "That was pretty amazing, I have to say. He's a very, very good horse.

"To do it like that on this stage - it was a shame that Willie's horse [Dysart Dynamo] fell but he'd have needed to be good to beat us.

"I'm shaking like a leaf."

Dom Breslin: Britain 1 - 0 Ireland. Very impressive from Constitution Hill. Was stalking Dysart Dynamo & Jonbon all the way and would have coasted in even without DD’s fall.

Dysart Dynamo is thankfully OK after that fall.

A brilliant reception as Constitution Hill heads past the applauding fans towards the winners enclosure.

A winning start for Nicky Henderson and Nico de Boinville.

John Hunt
Race commentator on BBC Radio 5 Live Sports Extra

I'll be surprised if you've ever seen better than that in this race - it was a brilliant performance.

Charlie Poste
Former jump jockey on BBC Radio 5 Live Sports Extra

Constitution Hill looks like he wouldn't blow a candle out - he's so calm. He's got the ability to go the top level.

1. Constitution Hill 9/4 CF

2. Jonbon 5-1

3. Kilcruit 6-1

Full result

Nine ran.

Charlie Poste
Former jump jockey on BBC Radio 5 Live Sports Extra

That was a scintillating performance - it was dominant.

John Hunt
Race commentator on BBC Radio 5 Live Sports Extra

If there was a referee here he'd definitely have stopped it - Constitution Hill was piling it on!

Constitution Hill wins the Sky Bet Supreme Novices Hurdle.

Constitution Hill streams away heading towards the finish and it is going to be a comfortable victory.

Ouch!published at 13:35 Greenwich Mean Time 15 March 2022

13:35 GMT 15 March 2022

Dysart Dynamo falls! And into the penultimate flight Jonbon and Constitution Hill are side-by-side.

Charlie Poste
Former jump jockey on BBC Radio 5 Live Sports Extra

Constitution Hill looks to have the perfect position under Nico de Boinville.

Dysart Dynamo continues to lead the way after the fourth with Jonbon and Constitution Hill a few lengths ahead of the rest of the field.