Penitent will be supplemented for the Queen Elizabeth II Stakes at Ascot on Saturday week at a cost of £70,000. The six-year-old joined Middleham Park Racing from Cheveley Park a year ago and has delivered three victories, including two at Group Two level for trainer David O'Meara.
Last Sunday, Pentinent finished second behind Tom Hogan's Gordon Lord Byron in the Prix de la Foret at Longchamp.
Looking forward to the QEII Middleham Park's Nick Bradley said: "There aren't that many options left for him and the owners have a few quid in the bank, so we thought it was worth a go.
"Obviously there will be or two in there to fear, but overall I don't think there will be a lot of strength in depth in the race.
"Frankel scared a few off in this division initially before he stepped up in trip.
"Now there's horses like Excelebration, Elusive Kate and Cityscape and we're looking forward to the race.
"It's £70,000 to supplement, which is a lot of money, but I think the horse deserves a crack at it."
Bradley admits he could never have dreamt what an excellent buy Penitent would turn out to be this year.
"The owners had a great day in France last weekend and we can now look forward to having a runner on Champions Day," he said.
"He's been a fantastic horse for us. I was looking the other day and one or two of the bigger owners don't have a horse as good as him.
"We're very lucky to have him."