Luiz Felipe Scolari has promised a "revolution" at Chelsea.

And he warns that no-one will be safe at Stamford Bridge when he begins his cull.

Scolari said: "It will be a revolution especially in terms of mentality.

"First there will need to be an overhaul, as happens in any company when they change boss.

"When that happens I don't know, because it depends on the human resources, on the whole team.

"I confess, for the first few games I will have difficulty in identifying all the players and getting their fusion right.

"Everyone has their personality, their way of working and their way of seeing players. I will begin by seeing players in training because you see different reactions there."

Once he has completed his assessment, Scolari will not feel the need to justify his decisions.

He said: "My choices are purely tactical ones. I pick the players I think are the best.

"I only give explanations about players I pick, never about others.

"I won't give explanations about any player not selected. Whoever is not selected is not selected.

"Let them be unhappy with it. They know that's the way it is in football. I, as a coach, have to live with the responsibility of choosing."