Middlesbrough are the Premier League 's lowest scorers with just 17 in 21 matches so far this term .
Karanka is keen to add to his striking options , having already poached Rudy Gestede from Aston Villa this month .
Middlesbrough are the Premier League 's lowest scorers with just 17 in 21 matches so far this term and Karanka is keen to add to his striking options , having already poached Rudy Gestede from Aston Villa this month .