Didier Drogba believes visiting Stoke have every reason to be frightened of the goal scoring prowess of Chelsea ahead of their league clash on Saturday.

The 'Blues' have made a blistering start to their Premier League defence bagging two successive six nil wins against Wes Brom and Wigan respectively.

"We have developed a perfect system. We practise so many different situations thousands of times in training so it becomes automatic in games.

"It may look easy - but the secret is work, work and more work each day.

"And, while Ancelotti is an Italian coach, we do not play a defensive Italian style.

"That is how we were successful last season so there is no reason to change."

Chelsea recorded huge wins last season - a factor that propelled them to Premiership glory, robbing off the title from rivals Manchester United.

Stoke's last visit to Stamford Bridge ended in grave disappointment as they were thrashed 7-0 - a situation likely to repeat itself considering Carlo Ancelotti's men start of the season of which Drogba has been very instrumental.