"We showed character to come back and scored some good goals. But we couldn't play the final pass properly and the game was too open," said Benitez.
"The game was a little bit too frenetic and you have to be able to control things a lot more in these games.
"I was really pleased with the first few minutes. But we conceded two goals and everybody was a little bit nervous after that.
"It can make a massive difference when you score first, but the reaction of the team was very good when we went two goals down.
"They were a threat playing on the counter-attack. We know that teams like this will try to be organised and play in this way.
"We made too many mistakes. These are the kind of games that you have to win. We are disappointed, but we cannot change anything."