"It's true, we didn't play well. We had too many problems and made too many mistakes," Benitez told reporters after the match.
"We had to change everything in the second-half and then it was different, it was much better.
"In the first-half they were on top of us. We knew it would be difficult, they were doing well but we were doing everything badly.
"Fiorentina have done a very good job. They were pressing around the pitch and we were too nervous, making mistakes. If you make mistakes you pay for them."