Chelsea skipper John Terry insists they have the bottle to stay top of the table.
Manchester City boss Manuel Pellegrini backed his side to retain their title after David Silva inspired a 3-1 win at West Brom.
"I think we're playing well, and playing before teams it's a chance for us to go six points clear," said Terry on Sky Sports 1.
"And the pressure's on them now to win, and to try to stay close to us. We're playing great now, everyone can see that, and if we continue to do that it's going to be tough.
"That's (the title) the target for us, right from day one. We've got off to a good start, and if we continue our form it's going to be tough for anyone.
"We are playing great at the minute but that can change over two or three games, everyone's seen that.
'It's important we remain calm and keep doing what we're doing right now which is playing good at the moment. I see a hunger among the players that haven't won the league."