Jose Mourinho insists Chelsea's seven-point lead at the top of the Premier League means "nothing" after beating Aston Villa 2-1 on Saturday.
Branislav Ivanovic's superb winner at Villa Park fired Chelsea further clear of Manchester City in the race for the title following Manuel Pellegrini's side drawing at home with Hull.
But the Stamford Bridge chief refused to get carried away and warned their lead could quickly disappear.
"In another country I would say it's fantastic, in this country I would say it's nothing," he said. "Every game is difficult, anything can happen. It's very, very difficult.
"Seven points means seven points, we have 14 matches to go. We are speaking about 42 points to play for and in 42 we have a lead of seven. I think it's nothing."
City's failure to beat Hull did not surprise Mourinho, and he told his squad to focus on their own results rather than those of their rivals.
"I'm surprised by nothing. In this country every team can take points so I am not surprised. I didn't care about it," he added.
"Somebody told me after the game and that was it. Before the game I was not worried and during the game and I didn't imagine the result.
"When you are top of the league you don't need other teams to lose points. If they lose, good, but if they don't it's not a problem.
"We have to focus on ourselves. If we win the next game we have a seven-point lead with 13 matches to go. Let's try to go step by step."