Middlesbrough have been dealt a blow with the news that influential midfielder Julio Arca will be out for at least two months with medial knee ligament damage.

Arca sustained the injury in Middlesbrough's 2-2 English Premier League draw with Sunderland on Saturday, in which the 26-year-old Argentine scored against his former club.

His injury will come as a huge blow to manager Gareth Southgate, although he was at least able to comfort himself with the news that strikers Tuncay Sanli and Mido - who picked up knocks in the match - could play against next weekend after tests on their respective injuries revealed no lasting damage.

Southgate told the club's official website: "We have had some more positive news this afternoon.

"Both Mido and Tuncay have gone for scans and there's no significant damage, and both have a chance of playing on Sunday.

"However, the injury to Julio looks more serious. It's the medial ligament in his knee and it looks like it will be at least two months."

Arca will be a big miss for the Teessiders with he and Brazilian Fabio Rochemback having formed a formidable central midfield partnership this season.

He hobbled off the field after extensive treatment 25 minutes into Saturday's 2-2 draw, but then had to be carried on a stretcher to the dressing room.