Promising galloper Divine Unicorn will take another step in an experiment when he tackles the Tattersall's Cup at his eighth start.

The conditions of the $100,000 David Bourke Provincial Plate at Flemington have made the race attractive for connections of recent Sydney winner Penske.

Facts and Figures on the Group One Tattersall's Tiara for fillies and mares at Doomben.

Three-time Brisbane champion jockey Glen Colless has been rewarded for his hard work with a ride for trainer Chris Waller in the Tatt's Tiara.

Rocket Tommy has won three of his four starts at Flemington and will be out to add another when he lines up in a heat of the All Victorian Sprint Series.