Benitez is wary of the threat a team at the bottom of the table can pose if his side are not fully focused on their task.
"Obviously they are in a difficult position and that means they will be more dangerous," he said. "They are a team fighting to avoid relegation and that will be a totally different challenge.
"We have to carry on doing our job, trying to concentrate and focus on the things we are doing well and trying to improve the things we are not doing well.
"They are trying to do well so we will see what will happen, but for us it is about concentrating on our job."