Trainer Harry Derham and bloodstock agent Ed Bailey made the biggest splash at the Tattersalls Cheltenham Festival Sale on Thursday by snapping up two of the most expensive horses on the evening for a combined sum of £720,000. The spend was headed by the Colin Bowe-consigned top lot, Cristal d'Estruval (Ire) (Crystal Ocean {GB}), at £400,000, while the pair went to £320,000 to secure Lisronagh point-to-point winner Clondaw Park (Ire) (Walk In The Park {Ire}). Cristal d'Estruval was one of the big talking horses coming into the sale following his...