Ospreys suffer Alun Wyn Jones blow ahead of Challenge Cup opener

Wales captain Alun Wyn Jones will miss Ospreys' upcoming European Challenge Cup opener against Castres after a knee injury.

Jones, who is the most capped player in Test history left the field in the 63rd minute during the fifth place play-off game in the Autumn Nations Cup against Italy with his right knee strapped.

According to head coach Toby Booth, the 35-year-old had a scan on his knee and is expected to be out of action for 'weeks'.

"He's had a scan and we're assessing what that means," said Booth.

"From a time out point of view it's going to be weeks not days, which is disappointing for everybody.

"I can't tell you that [on the number of games he will miss]. I don't know.

"Until we get the full picture on the scan, until we get recommendations from the consultants... I know Wales will be involved because he was in their charge, if you like, at the time".

Ospreys are positioned third in the Conference A table of Pro14 with three wins from seven games and following their Challenge Cup opener against Castres, they will face Worcester Warriors in the second round on 19th December.