O’Brien: I may be stuck on the bench

The idea to use O’Brien for the Street Rugby app was hardly a reach with a man whose nickname is the Tullow Tank and yet the Leinster and Ireland flanker is a good deal more delicate than his virtual alter ego would suggest.
He picked up bad bruising on a knee during last week’s Amlin Challenge Cup final defeat of Stade Francais and won’t know for sure if he can play tomorrow’s RaboDirect Pro12 decider against Ulster until a run-through at the RDS this morning.