Ireland's King of Kings dethroned French champion Xaar to land a first British classic for trainer Aidan O'Brien in the Sagitta 2000 Guineas at Newmarket on Saturday.

BBC: King of Kings conquers Xaar

The big race of the first day of the festival is the Sagitta Jockey Club Stakes, a Group Two race for older horses run over one mile four furlongs.

BBC: Flat Classics begin