O'Brien and Boss to miss finale

Sean O'Brien and Isaac Boss have been ruled out of Leinster's bid for RaboDirect PRO12 Grand Final glory on Sunday.

Flanker O'Brien has failed to recover from a knee problem while scrum-half Boss has been sidelined with a muscle injury. Prop Cian Healy is also a doubt and faces a late fitness test on a dead leg with Jack McGrath on standby to replace him, although there was good news as Brian O'Driscoll and Rob Kearney are both available in what is an unchanged backline. Rhys Webb has been given the nod at scrum-half for Ospreys, who have no fresh injury concerns, meaning Kahn Fotuali'i drops to the bench for Sunday's clash at the RDS. Ospreys secured a 23-22 victory at the same ground in the six-match winning run at the end of the regular season, while they smashed defending champions Munster 45-10 in the semi-finals, although coach Steve Tandy insists past results count for nothing. "Previous games won't count for a thing on Sunday, it's all about the day and who handles the pressure the best," said Tandy. "We know that we have to improve in certain areas, we were guilty of putting ourselves under unnecessary pressure in the Munster match and that meant we had to rely too heavily on our defence. "We don't want to have to do that on Sunday, we want to try and be more composed and look to dictate territory better."