Vivaldi heads Classic challenge at Warwick

Paul Nicholls' Vivaldi Collonges heads a maximum field of 20 in Saturday's Betfred Classic Chase at Warwick.Nicholls has not declared Virak, though, with others taken out at the declaration stage including Bishops Road, Regal Encore and Gordon Elliott's Bless The Wings.Venetia Williams runs Houblon Des Obeaux, Emperor's Choice and 2013 winner Rigadin De Beauchene.Alan King has a couple of chances with Sego Success and Midnight Prayer, while another trainer with several runners is Kerry Lee in Mountainous, Goodtoknow and last year's winner Russe Blanc.Doctor Harper, just touched off at Cheltenham on New Year's Day, Milansbar and Viva Steve will all have plenty of supporters.Others to take their chance include 2014 winner Shotgun Paddy, Kaki De La Pree and One For Arthur.