Rhyno Chaser remains a doubtful starter in the Group One Spring Champion Stakes at Randwick on Saturday following a veterinary inspection on his injured hoof.Racing NSW chief steward Ray Murrihy said the colt would undergo a further examination on Friday and would be given until raceday to prove his fitness if needed."Our vet Craig Suann said there was still a degree of soreness but there's no point taking the horse out at this stage, we've still got 48 hours and we want to give him every chance

Rhyno Chaser remains a doubtful starter in the Group One Spring Champion Stakes at Randwick on Saturday following a veterinary inspection on his injured hoof.

Racing NSW chief steward Ray Murrihy said the colt would undergo a further examination on Friday and would be given until raceday to prove his fitness if needed.

"Our vet Craig Suann said there was still a degree of soreness but there's no point taking the horse out at this stage, we've still got 48 hours and we want to give him every chance," Murrihy said.

Trainer Kevin Moses advised Racing NSW stewards a nail had pierced into the sole of Rhyno Chaser's near-fore hoof following his win in the last Saturday's Dulcify Handicap.

After sharing Spring Champion Stakes favouritism for most of the week, Rhyno Chaser has drifted to $3.60, leaving Predatory Pricer at the top of the market at $3 with TAB Sportsbet.

The David Payne-trained Naval Escort has already been scratched from the race with a viral infection.

Glyn Schofield, who rides the Paul Murray-trained Predatory Pricer, said the half-brother to international sprint king Takeover Target was ready to hit top gear on Saturday.

"If you watch the film of the last couple of runs, he's had those races in the bag a long way out and has never been forced to find his absolute best but that could change on the weekend," Schofield said.

At his last start Predatory Pricer stormed home to defeat Stalingrad by a neck in the Group Three Gloaming Stakes at Rosehill on September 20.

Before that he defeated Caymans by a long head in the Ming Dynasty (1400m).

"When I ask him for something he runs up to them like he's going to win by three or four and seems to just sit there but it's the fact he picks them up in a few strides that makes him exciting," Schofield said.

"He's stepping up another notch this week and I'm really looking forward to it.

"This trip (2000m) is not going to worry him one bit, he's such a laidback horse. You can switch him off and he finds that turn of foot."

Murray said the plan was to give Predatory Pricer a spell after Saturday's race and save him for the AJC Australian Derby in the autumn.

His father Bede claimed the 2000-2001 Spring Champion Stakes-Derby double with Universal Prince.