Middlesbrough have confirmed that French striker Jeremie Aliadiere could be out for as long as two months due to ankle ligament damage.
The 25-year-old was injured in the 2-1 FA Cup third round win over Barrow last weekend, having to be replaced just after the half-hour mark against the non-leaguers.
Manager Gareth Southgate told the club's official website: "Jeremie will be possibly six to eight weeks out with ankle ligament damage.
"Immediately after the game we were upbeat because there was no break, but unfortunately he's going to be missing for a while."
Meanwhile, Boro goalkeeper Brad Jones has penned a new contract to keep him at the Riverside until the summer of 2012.
The 26-year-old Australian has had to settle for a back-up role for most of his time with Boro, but is happy to pledge his long-term future to the club.
"Brad feels the challenge here is one he's prepared to take on," Southgate added. "I've said all along there's very little to choose between our goalkeepers.
"I'm pleased to get Brad signed up because I know he's going to be a very good goalkeeper."