Altior & Tiara do battle in Celebration Chase Arkle Trophy winner Altior and Queen Mother Champion Chase hero Special Tiara will lock horns in Saturday's bet365 Celebration Chase at Sandown. Although the two-mile contest may be lacking in numbers with just four horses going to post, it promises to be an intriguing battle between the two Cheltenham Festival winners, who on official ratings are split by just a pound. The Henry de Bromhead-trained Special Tiara will be attempting to win the race for a second time having claimed top honours in 2015. Altior will bid to give his trainer Nicky Henderson, who also saddles Vaniteux, back-to-back wins in the Grade One after taking it 12 months ago with the now-retired Sprinter Sacre. Completing the small but select field is the Paul Nicholls-trained San Benedeto, who made it six wins over fences this season last time out with victory in a Grade One at Aintree.