Tottenham midfielder Scott Parker says they must get in the faces of Chelsea tomorrow night.
Victory against their London rivals at White Hart Lane would put them five points clear of the Blues - with a game in hand.
England midfielder Parker, 31, insisted: "You have to come out with fire in your belly and lay down a marker at the start of the game.
"How you start the match sets the tone for the rest of the game.
"I try to play my natural game and hope it inspires my team-mates. When I see them flying into tackles it has an effect on me.
"If you start the game positively, it helps to motivate the team to kick on and get a result."