"We scored the first goal and were doing well. After that we lost control and they had chances," said Benitez.
"We conceded from a corner from which we could have done better. It is difficult to stop them because they have five or six players who are really strong in the air. It was a free header and that was a mistake.
"We had three players around and didn't stop him [Ivanovic]. When you have people in that zone you must control that space but clearly we made a mistake."