Toulouse are on course for a smooth passage to the knock-out stages but last weekend’s win was over-shadowed by a serious career-threatening injury to Dragons’ centre Marc Stcherbina.

The Australian remains in hospital in the south of France following a successful neck operation but faces a lengthy spell on the sidelines.

Guy Noves’ men must maintain their excellent form after grabbing a valuable bonus-point win with Bath just three points behind.

But the Dragons could prove stubborn opponents for the three-time champions after a home win over Glasgow in round one.