Chelsea boss Jose Mourinho admits his players are unhappy with their lacklustre start to the new season, but insists they will turn things around.
The 3-1 defeat at Everton on Saturday left the defending Premier League champions two points above the relegation zone in 17th place, having won just one of their opening five games.
The Blues begin their Champions League adventure this week with the visit of Maccabi Tel-Aviv, and Mourinho is confident his side will make a winning start to their Group G campaign.
He is also backing the team to lift the gloom at Stamford Bridge in a bid to arrest their worst start to a league season since 1988.
"It's a new competition with all four teams starting with zero points. To start at home is important," Mourinho said. "You have just to go back three months and three months ago we were the best team in the country, the best manager and the best players.
"We are not happy, but we know what we are. We start so bad. (But) it's not because of that that somebody can steal what we are.
"Nobody can steal what we are, nobody can steal our trophies, nobody can steal our history. We know what we are: champions of England."
He added: "You cannot expect we are all smiles, laughing and jokes. When people are not getting the success that you work for, people are obviously frustrated and not happy.
"Confidence levels… especially people who are used to winning all the time. When you don't, it's a strange feeling. I promise you we are working. When we say business as usual, it's true. With one difference: we are not happy."