Formerly trained by Charlie Hills on the Flat, this son of Canford Cliffs has been a revelation since joining Nicholls, winning six of his last seven outings over hurdles.
This four-year-old is fancied for the Triumph Hurdle but his participation could be in doubt after taking a knock while schooling.
Nicholls, who trains the 140 rated gelding for John Cotton and his wife Barbara, said: "I schooled him just before he was going to go to Musselburgh last week and he knocked himself. It might just be a race against time to get him there. If he doesn't come right he might have to go to Aintree."
Better next season
Nicholls' added: "He's won six - I suppose we've placed him well - but he's a good horse.
"If we'd known more about him he wouldn't have been beaten at Market Rasen - we rode him wrong that day. He's a good horse and if we can't quite get him right this season for whatever reason he'll be better next season when he'll be a really good hurdler.
"He wants looking after and we could do with a few more like him."