Middlesbrough have confirmed that on-loan Arsenal defender Calum Chambers has suffered a stress fracture in his foot and is set for a spell on the sidelines.
Chambers made one appearance for Arsenal this season, in the opening day defeat to Liverpool, before heading to Aitor Karanka’s side in a temporary deal.
The 22-year-old has gone on to make 17 appearances for Boro this season, becoming a regular at the Riverside but now looks set for a lengthy spell out.
Karanka, speaking at a pre-match press conference on Thursday confirmed the injury but says it is too early to say yet when he will return for Boro.
“Calum has a stress fracture in his foot. I don’t know how long he will be out for or if it will be one, two, three or four weeks,” he said via the official Boro website.
“At the minute he’s trying to get fit as soon as possible.”
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Middlesbrough face Accrington Stanley in the fourth round of the FA Cup before resuming Premier League action against West Brom on Tuesday.
Boro are struggling in the Premier League, having gone five games without a win, to slip into 16th place, just four points off the drop zone.
Chambers has looked solid in central defence with Karanka’s side having a better defensive record than both Liverpool and Manchester City this season, despite their lowly league position, although he has also featured at right-back in recent weeks.
The injury is badly-timed for Chambers who had been enjoying regular game time and clearly making the most of his opportunity at the Riverside.
Boro had been linked with attempting to make Chambers’ move permanent although that could now be thrown in doubt with his latest injury.