Frank Lampard has said that Chelsea's attitude has changed in recent weeks, resulting in victories in their last four games.
The midfielder has praised the side's team spirit over the past year, which has seen Chelsea under three different managers.
The 34-year-old told Chelsea TV: "For me the biggest change is in our attitude. We go into games with the desire not just to pass and move the ball around.
"The attitude is to get close, to work hard for your teammates and to have a spirit about you. If we have that then we can do what we want.
"We do have to win these games. That's the position we put ourselves in, because we had that funny run through November and December. We were top and all of a sudden we are adrift but you can't look back at that. We have to be positive now."
The champions of Europe are 12 points adrift of Premier League leaders Manchester United, with two games in hand.
