Sean O'Brien has been named to start for Leinster in tomorrow's clash with Edinburgh at the RDS.

It had been thought the back row would miss the rest of the season after a shoulder dislocation but he has recovered and has the chance to prove his fitness ahead of their semi-final at home to Ulster next week.

In a strong starting XV, Jimmy Gopperth starts at out half, with Fergus Mc Fadden on the wing.

Meanwhile, Munster host Ulster tomorrow at Thomond Park.

Paul O'Connell starts in the second row while Ian Keatley returns at out half.

A victory holds importance for Munster as they will finish second if they win and Glasgow fail to beat Zebre.

Ulster have named an experimental side for the game with Dan Tuohy captaining the province.

Mayo hooker Dave Heffernan will start his first ever match for Connacht at the Ospreys tomorrow night.