Rangers winger DaMarcus Beasley is set for a spell on the sidelines after suffering suspected knee ligament damage.
Beasley was carried off on a stretcher after colliding with Stuttgart goalkeeper Raphael Schafer in the second half of the 3-2 UEFA Champions League defeat on Tuesday.
The 25-year-old now expects to be forced out of action during a critical part of Rangers' season.
The United States international told the Evening Times: "It looks like I've damaged a ligament, and I'll get a scan today to see just how bad it is.
"I kind of twisted my knee when the keeper made contact, it wasn't his fault."
The former PSV Eindhoven forward could now miss a run of seven games in December, including the decisive Champions League Group E match against Lyon on 12th December.
Walter Smith's side need a draw to secure a place in the knockout phase.

Latest Sky Sports News Report
Harvey slams Carlisle fans
Moyes and Ancelotti ready for clash
Zola gets vote of confidence
Paper review - 10th February
Chelsea v Arsenal
Birmingham v Wolves
Portsmouth v Sunderland - 1st Half
| Time | Fixture |
|---|---|
| Wednesday 10th February | |
| Barclays Premier League | |
| 19:45 | Arsenal vs Liverpool |
| 19:45 | Aston Villa vs Man Utd |
| 19:45 | West Ham vs Birmingham |
| 19:45 | Wolverhampton vs Tottenham |
| 20:00 | Blackburn vs Hull |
| 20:00 | Everton vs Chelsea |
| Tuesday 16th February | |
| Barclays Premier League | |
| 19:45 | Stoke vs Man City |
| Wednesday 17th February | |
| Barclays Premier League | |
| 20:00 | Wigan vs Bolton |
| Saturday 20th February | |
| Barclays Premier League | |
| 12:45 | Everton vs Man Utd |
| 15:00 | Arsenal vs Sunderland |
| 15:00 | West Ham vs Hull |
| 15:00 | Wolverhampton vs Chelsea |
| 17:30 | Portsmouth vs Stoke |
| Sunday 21st February | |
| Barclays Premier League | |
| 14:00 | Aston Villa vs Burnley |
| 15:00 | Fulham vs Birmingham |
| 15:00 | Man City vs Liverpool |
| 16:15 | Wigan vs Tottenham |
| Monday 22nd February | |
| Barclays Premier League | |
| 20:00 | Blackburn vs Bolton |
| Tuesday 23rd February | |
| Barclays Premier League | |
| 20:00 | Man Utd vs West Ham |
| Saturday 27th February | |
| Barclays Premier League | |
| 12:45 | Chelsea vs Man City |
| Time | Result |
|---|---|
| Tuesday 9th February | |
| Barclays Premier League | |
| Man City 2 - 0 Bolton | |
| Wigan 1 - 1 Stoke | |
| Portsmouth 1 - 1 Sunderland | |
| Fulham 3 - 0 Burnley | |
| Sunday 7th February | |
| Barclays Premier League | |
| Birmingham 2 - 1 Wolverhampton | |
| Chelsea 2 - 0 Arsenal | |
| Saturday 6th February | |
| Barclays Premier League | |
| Liverpool 1 - 0 Everton | |
| Hull 2 - 1 Man City | |
| Stoke 3 - 0 Blackburn | |
| Bolton 0 - 0 Fulham | |
| Sunderland 1 - 1 Wigan | |
| Man Utd 5 - 0 Portsmouth | |
| Burnley 2 - 1 West Ham | |
| Tottenham 0 - 0 Aston Villa | |
| Wednesday 3rd February | |
| Barclays Premier League | |
| Fulham 1 - 0 Portsmouth | |
| Tuesday 2nd February | |
| Barclays Premier League | |
| Hull 1 - 1 Chelsea | |
| Monday 1st February | |
| Barclays Premier League | |
| Sunderland 0 - 0 Stoke | |
| Sunday 31st January | |
| Barclays Premier League | |
| Man City 2 - 0 Portsmouth | |
| Arsenal 1 - 3 Man Utd | |
| Saturday 30th January | |
| Barclays Premier League | |
| Birmingham 1 - 1 Tottenham | |
Portsmouth left it late to grab a point while Manchester City and Fulham were comfortable winners.
Norwich's success this season means more to Chris Martin than most, as Chris Burton found out.
See all the goals and major incidents involving YOUR team, right here on skysports.com.
Portsmouth have had their winding-up order over an unpaid tax bill to HM Revenue and Customs adjourned for another week.
Arsenal entertain rejuvenated Liverpool, live on Sky Sports HD2, while Chelsea and Man Utd face tough examinations on the road.
Barcelona have dismissed reports that they have reached an agreement with Cesc Fabregas to sign the Arsenal star.
Rangers or St Mirren will entertain Dundee United in the quarter-finals of the Scottish Cup.
Milan Jovanovic claims to have agreed pre-contract terms with Liverpool ahead of a summer switch.