Chelsea goalkeeper Petr Cech says it's too soon to compare the current team with past title winners.

Cech has been part of three of Chelsea's four title winning teams.

"We only judge the team when the season is finished and you can see how many trophies the team has in hand," the 32-year-old told the official club website.

"It is difficult to say which Chelsea side in history was the best because a lot of them won trophies.

"This team has huge potential, it has been doing really well this season, we are top of the league and have been doing some brilliant games but we are empty-handed at the moment, and I don't like to compare the teams until the season is finished."