Jonathan Sexton has been ruled out of Leinster's Heineken Cup semi-final with Toulouse on Saturday.
The Ireland fly-half has failed to recover from the fractured jaw he sustained in the quarter-final win over Clermont Auvergne three weeks ago.
And Leinster coach Michael Cheika confirmed that Shaun Berne will deputise at outside half in the south of France.
Cheika said: "Jonny was desperate to play and we gave him every opportunity. But we felt it was too big a risk and we also have the player's welfare and safety in mind.
"But we have 100 per cent confidence that Shaun Berne can do the job."
Toulouse V Leinster
Stade Municipal, Toulouse, Toulouse
Referee: Nigel Owens
Saturday 1st May 2010, 16:45
Toulouse: C Poitrenaud, V Clerc, F Fritz, Y Jauzion, C Heymans, D Skrela, B Kelleher, D Human, W Servat or V Lacombe, B Lecouls, R Millo-Chluski, P Albacete, J Bouilhou, T Dusautoir [capt], S Sowerby
Replacements: V Lacombe or A Vernat Basualdo, J Poux, Y Montes, Y Maestri, L Picamoles , J Elissalde, Y David or F Maka , M Medard
Leinster: R Kearney, S Horgan, B O'Driscoll, G D'Arcy, I Nacewa, S Berne, E Reddan, C Healy, J Fogarty, S Wright, L Cullen [capt], N Hines, K McLaughlin, S Jennings, J Heaslip
Replacements: B Jackman, C Van Der Linde, M Ross, M O'Kelly, S Keogh, P O'Donohoe, E O'Malley, G Dempsey
