It just had to take one shot on target from Diego Costa for him to find the net against Boro, and Middlesbrough manager Aitor Karanka has admitted that Chelsea’s striker Diego Costa punished his team.
“In the Premier League, any mistake is going to be punished.
“It was from a set piece, and it is for that reason that Diego is one of the top scorers in the league.
“You can’t lose him for one second.
“But I do not have anything bad to say about my players.” Said Karanka.