Lil Rockerfeller and Annie Power have been supplemented for the Stan James Champion Hurdle at Cheltenham on Tuesday.
Lil Rockerfeller's trainer Neil King and his group of owners have decided to take their chance in the Grade One feature following the five-year-old's recent success in the Grade Two National Spirit Hurdle at Fontwell.
The absence of the injured Faugheen prompted King to take another look at the two-mile championship and after Lil Rockerfeller picked up over £45,000 in prize money for his Fontwell win, his connections were willing to take a chance.
"We entered him in the Coral Cup and the World Hurdle, but handicaps are out now and he's never run over three miles," said King.
"The day Faugheen was ruled out I was on my way to Fontwell and looking at the race, it seemed very open.
"I had a chat with the owners and they were excited by the idea, but we said we'd still head for the National Spirit as that had always been the plan.
"If he'd got beaten at Fontwell I'd have shot myself, but the manner of his victory was very impressive.
"He's an improving, young horse and it's so wide open we have to have a go, also the yard is in such good form - from our last 11 runners we've had five winners and five seconds.
"Confidence is high, as it is with Trevor (Whelan), our stable jockey, and the owners are playing with prize money so when you weigh it all up, we thought 'why not?'.
"Everyone tells you how hard it is for five-year-olds and by now I expected him to be running over three miles, but he just keeps on improving."
Another added to the field, as expected, is ante-post favourite Annie Power.
In the absence of last year's one-two, Faugheen and Arctic Fire, Willie Mullins has rerouted a couple of star mares from their original targets.
"Annie Power will be supplemented for the Champion Hurdle while Vroum Vroum Mag's preferred option will be the OLBG Mares' Hurdle," Mullins told OLBG.com.
With the two supplementary entries there are now 13 possible runners at the six-day stage.
The only horses taken out were the Mullins duo of Faugheen and Arctic Fire and John Ferguson's Purple Bay.
As well as Annie Power, Mullins could run Nichols Canyon and Sempre Medici.
Identity Thief for Henry de Bromhead adds to the Irish hand.
The home team is headed by The New One, having his third run in the race for Nigel Twiston-Davies.
Nicky Henderson still has five engaged - the long-absent My Tent Or Yours, last year's Triumph Hurdle winner Peace And Co, Hargam, Sign Of A Victory and Top Notch.
Camping Ground for Robert Walford and Paul Nicholls' Old Guard complete the list.
