Montpellier - South African flank Wiaan Liebenberg is set for a three month spell on the sidelines as he needs an operation on a broken wrist, his French club Montpellier said on Tuesday.
The 25-year-old will join French international wing Benjamin Fall in missing Saturday's European Cup clash with Glasgow.
Fall, 28, suffered a cut elbow in last week's 29-22 victory over Glasgow in Scotland.
That success resurrected Montpellier's hops of making the European Champions Cup knock-out rounds having lost their opening two matches against Exeter and Leinster.
The French Top 14 outfit are third in Pool 3 and six points behind Irish province Leinster, knowing that another victory against Glasgow is imperative if they are to stay in the race for the quarter-finals.