France and Toulouse out-half Jean-Baptiste Elissalde now faces a race to recover from a elbow injury if he is to line out for Toulouse at the Millennium Stadium on Saturday 11, April.
The 2005 Heineken Cup winner sustained the injury during Saturday's Top 14 Orange clash with Montauban and was taken off for treatment after levelling the score with a 26 minute penalty kick.
The early diagnosis suggests a six week lay-off for the 31-year-old which would rule him out of the must win Heineken Cup quarter-final against Cardiff Blues at the Millennium Stadium, but the former La Rochelle player will undergo further tests this week.