Wilkins believes it is "out of the question" that Chelsea would sack under-fire new manager Benitez before the end of the season.
"I would think that is totally out of the question," Wilkins told Sportsweek on Radio Five Live.
"They have asked him to come in and do a job and no doubt he is trying to work very hard to do it.
"Unfortunately the results are going against him at the moment. It has been a very difficult period for Chelsea Football Club and at the moment they are struggling."