Middlesbrough boss Aitor Karanka is looking to add further attacking options to his squad during the January transfer window.

Boro have proved a tough nut to crack upon their return to the Premier League as they have only conceded 22 goals in their 20 top-flight matches to date, but they have found goals at the other end more difficult to come by, as they have only scored 17 league goals in total.

Karanka has already moved to bolster his forward options during the January transfer window by signing Rudy Gestede from Aston Villa on a three-and-a-half-year deal, and the Spaniard is now targeting further attacking additions during the rest of the month.

“I hope we can bring in more players, especially with the injuries we have had we need a little more,” he told a news conference.

“I think we need to improve in the attacking positions, and I hope we can bring in someone who can play on the wings.”

The 43-year-old refused to be drawn on any specific transfer targets as he is currently more focused on his side’s FA Cup third-round clash with Sheffield Wednesday at the Riverside Stadium on Sunday.

He added: “I can’t say anything about names of players. Today is January 6 and if we start talking about players already it is going to be a long month.

“The club as always is working hard behind the scenes. We have an important game on Sunday and I have to think about the players we have here.”

Middlesbrough are available at 1.91 to win the match, while their Championship opponents are priced at 4.33 and the draw is on offer at 3.40.