Barry Geraghty riding Defi Du Seuil (green) clear the last to win The Betfair Tingle Creek Chase from Un De Sceaux (blue) and Paul Townend at Sandown in December. Photograph:   Leo Mason/Popperfoto via Getty Images

Defi Du Seuil and Un De Sceaux are the two star names among five runners declared for the Matchbook Clarence House Chase at Ascot. The Philip Hobbs(...)