(AFP) - New Chelsea interim manager Guus Hiddink has asked his underperforming players to "look in the mirror" and claims their future at the club is at risk if they do not up their game.
The Dutchman has replaced Jose Mourinho but confirmed at a press conference on Wednesday it is only likely to be a short-term role.
He arrives with Chelsea struggling in 15th spot in the Premier League with supporters unhappy with players for their perceived failure to work for their predecessor.
Diego Costa, Cesc Fabregas and Eden Hazard bore the brunt of supporter criticism but Hiddink's message to them was a clear one.
"I spoke fully to the squad and, of course, we talked a bit about the past, why I'm here, the reasons why we are down," he said.
"But on the other hand I told them things happen in football and I want everyone to look in the mirror, not just for two seconds, but longer.
"And see what anyone can contribute from now on to raise us up. That was what I was emphasising. Not to look back too much.
"We cannot ignore what has happened in the recent past, but I asked them and told them to look in the mirror and be hypercritical and give the best for the team. They have to look forward."
He added: "There must be a great desire to play. If you don't have that desire, please knock on my door and we'll talk. We'll talk briefly."
Hiddink is reprising the role he took in 2009, a season where he helped Chelsea win the FA Cup.
"I shouldn't be here, halfway into the season," the 69-year-old said as he gets ready for his first game in charge at home to Watford on Boxing Day.
"That means things are not going as well as foreseen at the beginning of the season. But anyhow I'm glad to be back. It's a few years ago that I was here in a similar situation and I tried to help out when I was asked to do so.
"I worked at that time with a lot of love for the club and to work with the players is great.
"First we said let's go to mid-May. But then we'll see. I will see what will happen. We have only spoken about until the end of the season.
"No manager can guarantee three points every week, but we have to show to ourselves, the club, the players, the fans inside Chelsea and abroad, that the team have big desire to wash away the last half year and go up to the next coming games."
Hiddink has refused to rule out a return to the club for former player Didier Drogba who was in the stands alongside him for the 3-1 win over Sunderland last week.
"I worked with him five or six years ago, and I was delighted to have such a professional in the squad," he said.
"He is a legend already in this club, but also outside this club in the world. So it's nice for guys with these big hearts to connect them somehow with the club. But he is playing for Montreal, under contract.
"All the big clubs, and the smaller ones, have these specific guys, figures, who can go into whatever they like - coach, ambassador, manager - but they must be given the opportunity to do so. They give the Chelsea brand a big image, worldwide.
"The official process I don't know, but I spoke openly from the bottom of the heart that such impact players can be huge for the club. How it goes on now, it's others who have to deal with that. Not me."