His agent, Walter Tamer, was quoted on Wednesday as saying the Argentine midfielder was tired of life in England, and favoured a move to Barcelona.
However, Benitez responded: "In the press these days there are too many websites, too many newspapers, radio, television. You have to have stories every day so sometimes you repeat something from 15 days ago.
"It's much the same situation, he knows our ideas. He's been working very hard and he's a very important player for us."