Greatrex still has to decide whether to run his stable star in the OLBG Mares' Hurdle or let her take on the boys in the Sun Bet Stayers' Hurdle.
He said: "I'm excited about La Bague Au Roi. I'm not sure yet which race she will go for. There is probably more depth in the Stayers' but there is a talented horse (Apple's Jade) and a few others in the mares' race. She is in great nick."
Greatrex went on: "She definitely stays three miles. I think I will leave it until as late as possible. It is just a case of how things develop between now and the day.
"She is more talented than Cole Harden. He won his races by being very tough and he would grind them into the ground. She has got a lot more class.
"Whichever race she runs in, she will run very well."
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