Donnacha O'Brien is leaning towards the Coronation S. with 1,000 Guineas runner-up Porta Fortuna (Ire) (Caravaggio) but has left the door open for his star filly to run in the Commonwealth Cup at Royal Ascot. Porta Fortuna provided the County Tipperary handler with his first success at the summer showpiece when landing the Albany S. 12 months ago. Since then, Porta Fortuna has gone on to scoop Group 1 glory in the Cheveley Park S. and she also came mightily close to providing the trainer with his first Classic when...