QPR captain Martin Rowlands is out for the rest of the season after suffering another anterior cruciate ligament injury.
The midfielder suffered his latest injury setback while making his first competitive start for the Republic of Ireland on Wednesday night.
He went down unchallenged late on in the first-half against Montenegro and then had to be stretchered off.
Scan results have now revealed the full-extent of the injury and Rowlands is due to go under the surgeon's knife on Monday.
It is the latest blow for the 30 year-old, who suffered a carbon copy injury against Derby County in mid-January which ruled him out for the latter stages of the 2008/09 campaign.
He returned from that set-back and the club's head physio Paul Hunter believes he can do the same this time around.
Hunter told the club's official website: "Martin's been to see the specialist and the results of the scan unfortunately revealed that he's sustained another anterior cruciate ligament injury.
"He's pencilled in for an operation on Monday."
He added: "Martin's a fighter. I've no doubts he'll come back from this.
"He knows what it takes after going through it last season - his attitude was spot on then and I'm sure it will be the same when his rehabilitation begins in the coming months."