Celtic will be without Italian midfielder Massimo Donati for next week's UEFA Champions League trip to Aalborg BK.
The 27-year-old former AC Milan man broke a toe in training and will now have to endure a spell on the sidelines.
Celtic have yet to confirm how long Donati might be unable to manager Gordon Strachan, but his absence next week is sure to be felt.
Donati has played in all four of the Bhoys' Champions League matches this season after coming off the bench in their 1-1 home draw against Manchester United.
The no-nonsense midfielder will not travel with the Celtic squad to Denmark while manager Gordon Strachan is sweating over the fitness of Paul Hartley (ankle) and Barry Robson (groin).
The SPL champions will find themselves out of Europe's leading club competition should they fail to beat Aalborg next week, a game that can be seen live on Sky Sports 2 and HD2.

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Sunderland 1-0 Arsenal - Le Tissier
Chelsea 4-0 Wolverhampton - Nicholas
Burnley 1-1 Aston Villa - Thompson
| Time | Fixture |
|---|---|
| Saturday 21st November | |
| Barclays Premier League | |
| 12:45 | Liverpool vs Man City |
| 15:00 | Birmingham vs Fulham |
| 15:00 | Burnley vs Aston Villa |
| 15:00 | Chelsea vs Wolverhampton |
| 15:00 | Hull vs West Ham |
| 15:00 | Sunderland vs Arsenal |
| 17:30 | Man Utd vs Everton |
| Sunday 22nd November | |
| Barclays Premier League | |
| 13:30 | Bolton vs Blackburn |
| 15:00 | Tottenham vs Wigan |
| 16:00 | Stoke vs Portsmouth |
| Wednesday 25th November | |
| Barclays Premier League | |
| 19:45 | Hull vs Everton |
| 20:00 | Fulham vs Blackburn |
| Saturday 28th November | |
| Barclays Premier League | |
| 15:00 | Blackburn vs Stoke |
| 15:00 | Fulham vs Bolton |
| 15:00 | Man City vs Hull |
| 15:00 | Portsmouth vs Man Utd |
| 15:00 | West Ham vs Burnley |
| 15:00 | Wigan vs Sunderland |
| 17:30 | Aston Villa vs Tottenham |
| Sunday 29th November | |
| Barclays Premier League | |
| 12:00 | Wolverhampton vs Birmingham |
| Time | Result |
|---|---|
| Monday 9th November | |
| Barclays Premier League | |
| Liverpool 2 - 2 Birmingham | |
| Sunday 8th November | |
| Barclays Premier League | |
| Hull 2 - 1 Stoke | |
| Wigan 1 - 1 Fulham | |
| Chelsea 1 - 0 Man Utd | |
| West Ham 1 - 2 Everton | |
| Saturday 7th November | |
| Barclays Premier League | |
| Aston Villa 5 - 1 Bolton | |
| Blackburn 3 - 1 Portsmouth | |
| Tottenham 2 - 0 Sunderland | |
| Wolverhampton 1 - 4 Arsenal | |
| Man City 3 - 3 Burnley | |
| Wednesday 4th November | |
| Barclays Premier League | |
| West Ham 2 - 1 Aston Villa | |
| Sunday 1st November | |
| Barclays Premier League | |
| Birmingham 0 - 0 Man City | |
| Saturday 31st October | |
| Barclays Premier League | |
| Arsenal 3 - 0 Tottenham | |
| Everton 1 - 1 Aston Villa | |
| Fulham 3 - 1 Liverpool | |
| Burnley 2 - 0 Hull | |
| Stoke 2 - 2 Wolverhampton | |
| Portsmouth 4 - 0 Wigan | |
| Man Utd 2 - 0 Blackburn | |
| Sunderland 2 - 2 West Ham | |
Pictures from Saturday's action where Liverpool draw with Man City and Arsenal lose away.
Take a look back at what Liverpool and Man City fans had to say following a 2-2 draw at Anfield.
Bristol City fan Hannah Shine was strutting her as the Soccerette in the Soccer AM studios this week.
Carlo Ancelotti was delighted after Chelsea beat Wolves 4-0 at Stamford Bridge to maintain their dominance at the top of the table.
Chelsea continued their relentless march at the top of the table as Arsenal lost to Sunderland and Manchester City held Liverpool.
Arsene Wenger says that his side were punished for a lack of mental preparation against Sunderland.
Steve Bruce feels that Sunderland have put their run of bad luck to rest after beating Arsenal.
Sir Alex Ferguson called on his side to put more pressure on Chelsea following the win over Everton.