Aitor Karanka has revealed Middlesbrough have full-back problems ahead of Saturday's trip to Crystal Palace.
Middlesbrough defender Calum Chambers shook off a foot injury with a standout performer in Sunday's 1-0 defeat at Tottenham.
Calum Chambers is back in training and could return for Saturday's match with Tottenham at the Riverside Stadium.
Aitor Karanka has confirmed that Calum Chambers, Gaston Ramirez and Antonio Barragan will miss this weekend's FA Cup fourth round tie against Accrington Stanley through injury.
Middlesbrough defender Calum Chambers picked up a suspected shoulder injury against Liverpool and will be assessed ahead of Saturday's clash with Swansea.
Calum Chambers played 90 minutes for England Under-21s in their 3-2 victory over Italy in a friendly at St Mary's Stadium on Friday.
Arsenal continue to shed peripheral players as Calum Chambers has been loaned to Middlesbrough in an effort to get him more first team experience.
Arsenal defender Calum Chambers looks set for a season-long loan to Middlesbrough with a medical planned for Tuesday.
Watford is reportedly leading the chase to take Arsenal defender Calum Chambers on loan for the upcoming season.
Calum Chambers put up good fantasy numbers in most game formats in Week 29 but don't confuse that with him playing well.
Calum Chambers has been flagged as an injury risk due to fatigue.
Calum Chambers has been accumulating yellow cards at a Lee Catermole-like pace this season culminating with his sending off against Stoke City over the weekend.
Calum Chambers rose to the occasion against Southampton with a strong outing in both fantasy and reality.
Calum Chambers broke through with a big match for Arsenal in their Week 10 win over Burnley.