Jose Mourinho admits Chelsea hold a 'significant advantage' in the title race but believes as many as five teams could yet be crowned champions come the end of May.
Mourinho's team are six points clear at the top of the Premier League with a game in hand, while the next three teams - Manchester City, Arsenal and Manchester United - are separated by just two points.
Liverpool are a further two points adrift in fifth, four points clear of Southampton and Tottenham, with nine matches remaining.
Mourinho is aware Chelsea have never held such a gap going into the final quarter of the campaign but was quick to point out any dip in form or concentration could prove costly.
"We are in front, the advantage is not half a body, the advantage is significant, but there is still a long way to go," he said.
"I would enjoy it much more if we had 20 points more, but normal is a good situation for us.
"In this nine years at Chelsea we were never at the end of March with six points more than the second-placed team so we have a good situation in our hands and the way we worked last week, and the way we work this week, I think the players are very confident.
"I think the tendency of our team is to improve until the end of the season, because normally in this period the normal tendency is for the teams to accumulate fatigue and stress and big matches in the Champions League.
"In this moment, our situation gives us space to work, space to improve. I repeat not an accumulation of fatigue. If things go in the direction I expect and the players expect, we can finish the season in a very strong way.
"I think it's still five in the title race, because the distance is still mathematically possible. The fifth, the fourth, don't have to fight against one, they have to overcome three. The distance is so short and mathematically I see that things are open."
