Salomon Kalou knows everyone will be trying extra hard to knock off champions Chelsea this season.
The Ivory Coast ace accepts Chelsea are now marked men.
He said: "We've just won the Premier League and FA Cup and this year will also be going for the Champions League.
"We have a squad that knows how to win and Chelsea are still the side for everyone else to beat.
"We are the champions so everyone will come hard to try to beat us.
"But we are ready and back for the challenge."
