Frank Lampard insists Chelsea can still go on and defend their Premier League title after the 3-1 win at Blackpool on Monday night.
The midfielder grabbed a double to go with John Terry's opener as Carlo Ancelotti's side secured an ultimately comfortable win, despite having to absorb heavy pressure from their hosts on occasions.
The win puts the Blues nine points behind leaders Manchester United with a game in hand.
Lampard told Sky Sports 1: "We have to believe (we can do it). It is a long shot and we have a lot to do but if we go and win every game we will have a great chance to do it, but it will be very difficult.
"We are still behind but it is nice to be looking up in the table at the top four. It's been a good week for us, we weren't at our best tonight, we were a bit sloppy and we cannot afford to be like that if we want to do anything.
"If we win every game we still have a chance but Arsenal and Manchester United are good sides and they have a good lead."
Salomon Kalou, who came on as a substitute for the injured Didier Drogba, won the penalty that allowed Lampard to make it 2-0 and set up the midfielder for the third.
Kalou equalled a club-record of 93 substitute appearances but says he is glad to play whatever role is required of him by the team.
"When you don't play often people expect you to make the difference but I am working hard in training and giving my best and hopefully my time will come," he said.
"The penalty was a great moment for us as it was a physical game and it came at the right time for us."