Ospreys skipper Alun Wyn Jones will undergo surgery this weekend after suffering a foot injury in training, while his team-mate Huw Bennett has also been ruled out of Saturday's Heineken Cup game against Benetton Treviso.
Speaking about the double injury blow, Head Physio Chris Towers commented, "Alun Wyn suffered a foot injury in training this week."
"As a result he is going to require surgery to repair soft tissue damage, which will carried out over the weekend. "
"Once he starts his post-op rehab work we will be in a better position to predict recovery timelines.
"Huw unfortunately didn't recover in time from a neck spasm that developed after last weekend's game to be considered to play against Benetton Treviso."