Middlesbrough boss Aitor Karanka was delighted with matchwinner Cristhian Stuani after their 3-2 FA Cup victory over Oxford United.

Stuani's 86th-minute winner at the Riverside Stadium ended the visitors' hopes of a replay after they had fought their way back from 2-0 down to leave their Premier League opponents in real danger.

Karanka said: "He is really important and for me, it's a shame that maybe it is not recognised how good he is and how much he is helping us. His numbers since he arrived here have been amazing, and not just the numbers, the moments.

"Today he appears at the most difficult moment; in the last game [of last season] against Brighton, he scored the most important goal, so for me it's a shame that sometimes he is not recognised as he deserves."