Brian O'Driscoll yesterday ended speculation over his future by agreeing a one-year contract extension with Ireland and Leinster, although he will miss tonight's final against Stade Francais.

O'Driscoll was expected to conclude his 14-season professional career after the forthcoming British and Irish Lions tour to Australia, but has instead chosen to re-sign with the Irish Rugby Union until the end of June 2014. The 34-year-old stated throughout the RBS 6 Nations that he had not made a decision, with his fitness and family commitments having the ultimate say, but the scenes at what was potentially his final match at the Aviva Stadium against France on March 9 suggested the end was close.

"I want to thank the IRFU and Leinster for allowing me the time to think about my future and discuss my options with my family," O'Driscoll said. "The support my family and the Irish and Leinster fans have shown me over the past few months, and indeed years, has been phenomenal and I'm now very much looking forward to one more year playing with Ireland and Leinster."

O'Driscoll is out of tonight's game because of a back spasm, but the problem is not expected to prevent him from touring with the Lions. He has often stated that the condition of his body would help determine his future, having sat out Ireland's 2012 autumn campaign due to ankle surgery, while shoulder and hamstring problems have troubled him in the past. Also shaping his decision were the wishes of his family after wife Amy gave birth to their first child Sadie in February.

The recent appointment of Joe Schmidt to succeed Declan Kidney as Ireland's new head coach has contributed to his willingness to play on for a further year. Schmidt, who has worked closely with O'Driscoll at Leinster, welcomed the centre's decision. "It's great that Brian has agreed to continue playing. He's an inspirational player, not only on the pitch, but also on the training ground," Schmidt said. "He's played well again this season and other players continue to learn from him."

Isaac Boss does not expect Stade Francais to show any fear in Dublin tonight although he and his Leinster team-mates start as firm favourites for further European success following Heineken Cup triumphs in three of the past four seasons.

Leinster's Heineken pool stage exit – they were beaten home and away by Clermont – meant they entered the Amlin knockout phase as one of three group runners-up, before victories over Wasps and Biarritz secured a final place on home soil.

Stade, meanwhile, knocked out Bath and Perpignan away from home, which is why scrum-half Boss knows Leinster cannot afford to be complacent. "They have a very strong team," he said. "They haven't done as well in the league, as they should, but I think they have got a real focus on this Amlin tournament. They have won twice away from home so they are definitely not scared of coming here. It's going to be a lot tougher than Biarritz were."

Despite O'Driscoll's absence – Fergus McFadden and Ian Madigan will form their midfield partnership – Leinster will feature four of their six British and Irish Lions for this summer's Australia tour. The full-back Rob Kearney, fly-half Jonathan Sexton, flanker Sean O'Brien and No.8 Jamie Heaslip all start, while prop Cian Healy is on the bench.

The game is also the last European occasion as Leinster chief for new Ireland coach Schmidt, with his final game being next weekend's RaboDirect PRO12 play-off final against Ulster.

Teams. Leinster v Stade Francais (RDS Showground, Dublin, tonight, 8pm)

Leinster R Kearney; A Conway, F McFadden, I Madigan, I Nacewa; J Sexton, I Boss; J McGrath, S Cronin, M Ross, Q Roux, D Toner, R Ruddock, S O'Brien, J Heaslip (capt)

Subs: R Strauss, C Healy, J Hagan, L Cullen, S Jennings, J Cooney, A Goodman, D Kearney.

Stade Francais J Porical; J Sinzelle, G Doumayrou, P Williams, H Bonneval; J Plisson, J Dupuy; A De Malmanche, L Sempere, R Slimani, S Lavalla, G Mostert, D Lyons, P Rabadan, S Parisse (capt)

Subs: R Bonfils, S Wright, J Becasseau, A van Zyl, L Tomiki, W Nayacalevu, J Arias, P Warwick

Referee N Owens (Wales)

Assistant referees L Hodges & I Davies (Wales)