The one to lose out may be Geordan Murphy if Andrew Trimble gets the nod for the number 22 jersey and that would see a bench comprising five Ulster players and two from Munster, Jerry Flannery and Mick O'Driscoll.

Peter Stringer sat out yesterday's training session and O'Sullivan may very well leave a vacancy at number nine when he announces his side but the word is that the Munster man will start in Croke Park.