TRAINER Colin Parker and his principal patron, Ray Green, are best known for their involvement in National Hunt racing. But they will be switching their attentions to the Flat on Saturday when Shinerolla lines up for the £50,000 added William Hill Lincoln.

After Green's bold jumping Solba had completed a hat-trick when taking the Bute Novices' Chase at Ayr yesterday in fine style under Brian Storey, the London-based owner said: "I hope my run of success continues at Doncaster this weekend."

Green paid 40,000 guineas for triple 1995 scorer Shinerolla out of Lynda Ramsden's yard at the Newmarket Autumn Sales and the gelding has been set 8st 8lb on Saturday.

"Shinerolla was a 25 to 1 shot for the Lincoln before he finished third on the all-weather at Wolverhampton last month on his first run for us and he was down to 14 to 1 within 24 hours," said Parker.

"But it wasn't my money that brought his odds down," declared Green. "The prize money on Saturday is enough - I don't need to back him. I think he will run a very big race given luck in running."

Solba had taken command at the 11th fence and went on to score decisively by seven lengths from White Diamond, with favourite Disco Des Mottes fading to finish a disappointing fifth.

Jonjo O'Neill's decision to take the blinkers off Uncle Keeny and replace Mark Dwyer with his conditional rider Alan Roche came up trumps as the Penrith gelding got back on the winning trail in the EBF Arran Novices Hurdle (Qualifier).

Uncle Keeny had finished third with Dwyer up in a competitive handicap hurdle at Wetherby three weeks earlier, and O'Neill admitted it had been Mark's idea to dispense with the blinds here.

Dwyer may have had to settle for second place on Mandicat behind Uncle Keeny but his turn to visit the winner's enclosure came jest an hour later on Rustic Air following the Islav Handicap Chase. in which Jimmy FitzGerald's nine-year-old enjoyed an easy nine length success over favourite General Command.

Smoothest winner of the day was Roger Fisher's Atavistic, now Aintree-bound after bolting home in the Gigha National Hunt Flat Race.

At Fontwell Chris Maude chalked up his best seasonal total when riding a 103 to 1 double on Daring King (12 to 1) and Madame President (7 to 1) to give him a boost for his Aintree Grand National ride on Young Hustler.

Now on the 30-winner mark, Maude said after partnering Daring King to a five length win over Fresh Choice in the British Equestrian Insurance Brokers Handicap Hurdle: "If the weather stays like this it will suit Young Hustler at Aintree. The ground cannot be too fast for him."

Trainer John Bolton reckons Daring King has a future chasing.

Tony McCoy just can't be kept down. The jockeys' championship leader hit the ground in the opener when Herbert Buchanan fell but he was on his feet in a flash and went out to ride an 83 to 1 double in the next two races aboard Sophie May (11 to 1) and Childhay Chocolate (6 to 1).

Sophie May and McCoy got up close home to beat Marius by three-quarters of a length in the Strebel Boilers and Radiators Handicap Hurdle. The second leg of McCoy's double quickly followed in the Heddy Simpson Memorial Challenge Trophy Maiden Chase. McCoy and Childhay Chocolate led on the home turn to beat Call Me Citizen by eight lengths.

Paul Nicholls, the victorious handler said: "This was the horse's first run over fences and,, he should do well in the spring. The Shepton Mallet trainer could have three runners in the Grand National, headed by Deep Bramble, who McCoy went down to ride in a spin before racing.

Nicholls added. Bramble is in very good form and I am pleased with him. He would not want it like a bog at Aintree or too hard. Vicompt de Valmont is entered too with Philip Hide in the saddle and also Brackenfield, who will be ridden by Guy Lewis."

Uncle Bert clinched his hat. trick in the opener and could have booked his ticket for a trip to this country. Graham McCourt, who trains the 2 to 1 favourite was riding at Uttoxeter.