Last updated: 6th October 2008
Middlesbrough manager Gareth Southgate has confirmed that Robert Huth has suffered a fresh ankle injury.
Huth has suffered an injury-plagued time on Teesside since his £6million move from Chelsea in 2006.
The Germany international has been limited to just 23 league starts, but he looked to have put his problems behind him this season after starting the first six games with no problems.
But now Huth has damaged ankle ligaments, which will be a huge concern for Boro given he had to undergo ankle surgery last year.
"Robert has a problem with his ankle ligaments but we don't yet know the full extent of the injury," said Southgate.
"The area is very swollen and it's difficult to give an accurate assessment at this stage.
"However we should have a clearer picture by the end of the week."
With Emanuel Pogatetz suspended and youngster Rhys Williams already sidelined, Boro are left with few options other than Chris Riggott and David Wheater in central defence.
Jonathan Grounds, who was recalled from a loan spell at Norwich, can also play in the middle, but with Andrew Taylor also set for a time on the sidelines with a hip injury, he is needed at left-back.
Southgate is now keeping his fingers crossed that his international players return unscathed - last time round both Tuncay Sanli and Mohamed Shawky picked up injuries with their countries.
He added: "The international break wasn't too kind to us last time.
"We've got a lot of players away again this week. In fact we've got only six or seven left.
"Hopefully everybody will come back fine this time. After the win against Wigan, everybody will want to play against Chelsea."
Southgate confirmed that Tuncay could be back for the next Premier League clash with Luiz Felipe Scolari's leaders after his knee problem.
"The Chelsea game is one of Tuncay's targets but he will not be considered unless he is fully fit," he said.
"I can't say yet when he will be ready to start, but he should be very close by the end of next week. The week after is a more realistic target but we'll have to see."

Pictures from the Bernabeu as Cristiano Ronaldo is unveiled as a Real Madrid player.
Pictures from Stamford Bridge where Carlo Ancelotti is unveiled as the new Chelsea boss.
A look at the best pictures as Michael Owen completes a surprise move to Manchester United.
Pictures from the unveiling of Real Madrid's reported £56 million signing at the Santiago Bernabeu.
Pictures from the Bernabeu as Cristiano Ronaldo is unveiled as a Real Madrid player.
| Time | Fixture |
|---|---|
| Saturday 15th August | |
| Barclays Premier League | |
| 12:45 | Chelsea vs Hull |
| 15:00 | Aston Villa vs Wigan |
| 15:00 | Blackburn vs Man City |
| 15:00 | Bolton vs Sunderland |
| 15:00 | Portsmouth vs Fulham |
| 15:00 | Stoke vs Burnley |
| 15:00 | Wolverhampton vs West Ham |
| 17:15 | Everton vs Arsenal |
| Sunday 16th August | |
| Barclays Premier League | |
| 13:30 | Man Utd vs Birmingham |
| 16:00 | Tottenham vs Liverpool |
| Tuesday 18th August | |
| Barclays Premier League | |
| 19:45 | Fulham vs Blackburn |
| 19:45 | Sunderland vs Chelsea |
| 19:45 | Wigan vs Wolverhampton |
| Wednesday 19th August | |
| Barclays Premier League | |
| 19:45 | Birmingham vs Portsmouth |
| 19:45 | Burnley vs Man Utd |
| 20:00 | Hull vs Tottenham |
| 20:00 | Liverpool vs Stoke |
| Saturday 22nd August | |
| Barclays Premier League | |
| 15:00 | Arsenal vs Portsmouth |
| 15:00 | Birmingham vs Stoke |
| 15:00 | Hull vs Bolton |
| Time | Result |
|---|---|
| Sunday 24th May | |
| Barclays Premier League | |
| Liverpool 3 - 1 Tottenham | |
| Wigan 1 - 0 Portsmouth | |
| Arsenal 4 - 1 Stoke | |
| West Ham 2 - 1 Middlesbrough | |
| Sunderland 2 - 3 Chelsea | |
| Hull 0 - 1 Man Utd | |
| Aston Villa 1 - 0 Newcastle | |
| Blackburn 0 - 0 West Brom | |
| Man City 1 - 0 Bolton | |
| Fulham 0 - 2 Everton | |
| Monday 18th May | |
| Barclays Premier League | |
| Portsmouth 3 - 1 Sunderland | |
| Sunday 17th May | |
| Barclays Premier League | |
| West Brom 0 - 2 Liverpool | |
| Chelsea 2 - 0 Blackburn | |
| Saturday 16th May | |
| Barclays Premier League | |
| Man Utd 0 - 0 Arsenal | |
| Everton 3 - 1 West Ham | |
| Tottenham 2 - 1 Man City | |
| Middlesbrough 1 - 1 Aston Villa | |
| Newcastle 0 - 1 Fulham | |
| Bolton 1 - 1 Hull | |
| Stoke 2 - 0 Wigan | |
| Pos | Team | P | Pts |
|---|---|---|---|
| 1 | Arsenal | 0 | 0 |
| 2 | Aston Villa | 0 | 0 |
| 3 | Birmingham City | 0 | 0 |
| 4 | Blackburn Rovers | 0 | 0 |
| 5 | Bolton Wanderers | 0 | 0 |
| 6 | Burnley | 0 | 0 |
| 7 | Chelsea | 0 | 0 |
| 8 | Everton | 0 | 0 |
| 9 | Fulham | 0 | 0 |
| 10 | Hull City | 0 | 0 |
| 11 | Liverpool | 0 | 0 |
| 12 | Manchester City | 0 | 0 |
| 13 | Manchester United | 0 | 0 |
| 14 | Portsmouth | 0 | 0 |
| 15 | Stoke City | 0 | 0 |
| 16 | Sunderland | 0 | 0 |
| 17 | Tottenham Hotspur | 0 | 0 |
| 18 | West Ham United | 0 | 0 |
| 19 | Wigan Athletic | 0 | 0 |
| 20 | Wolverhampton Wanderers | 0 | 0 |
Man Utd, Chelsea and Liverpool are all on the opening weekend in our first live Premier League fixtures.
Opta break down Chelsea's last three seasons of results with and without captain John Terry.
Sky Sports News sources understand that Wigan have agreed a fee with Swansea for Jason Scotland.
Rafa Benitez believes Xabi Alonso and Javier Mascherano owe it to Liverpool to stay at the club.
Man Utd, Chelsea and Liverpool all figure on the opening weekend of Sky Sports' first batch of live Premier League fixtures.
Roberto Mancini's agent has refused to add fuel to growing reports he could be set for Portsmouth.
Manchester United have made their third signing of the summer after landing Bordeaux's Gabriel Obertan.