sentences:  Sexton stated that he had been unaware of O'Gara's arrival, but was happy at the news as both men had developed a good working friendship in their later years together in the Ireland set-up, despite a reportedly fractious early relationship during Sexton's emergence.Sexton's departure came as a surprise to many in Ireland, as he had been a key player for both Leinster and Ireland in the preceding years, and had stated his intention to remain at the club.He cited the Parisian club's ambitious new project and impressive training facilities as factors in choosing them over traditionally more successful European clubs outside Ireland.