Leinster denied record-equalling fifth European Cup by late La Rochelle try

Coach Ronan O'Gara leads La Rochelle to their first Champions Cup triumph

Arthur Retiere goes over in 79th minute to snatch victory in Marseille

Six Johnny Sexton penalties gave Leinster 18-10 lead in second half

Pierre Bourgarit cut the deficit but then Thomas Lavault was sin-binned

However, O'Gara's side rallied superbly to triumph at Stade Velodrome