Sport: Irish weekend Rugby news.

Munster return to the Celtic League tonight following last weekendsHeineken Cup Semi final exit. Coach Alan Gaffney has been forced to make nine changes for the game with Cardiff. The province are without Ronan O’Gara, Peter Stringer and Captain Jim Williams among others, however Irish International Alan Quinlan will return to the pack. Kick off at Arms Park is at 7.05.Leinster will be boosted with the news that Brain O’Driscoll will remainwith the Province for the next two years heading into tonight’s game withthe Ospreys. Victor Costello will pick up his 100th cap for the province at the back of the scrum. While Table Toppers Ulster will be hoping for a good result away to theBorders as Llanelli are breathing over their shoulders with just threegames left to play. Both those matches get underway at 7.30.