The sublimely gifted Spanish striker has struggled for most of his 19 months at Stamford Bridge thus far but is starting to find his feet following his £50million move from Liverpool in January 2011.
He has scored three goals in four games so far this season, backing up his Euro2012 Golden Boot for Spain, and Cech is thrilled to see him back amongst the goals and enjoying his football again.
"Obviously it's a completely different story to the one when he first joined the club and you can notice the difference," he told the club's official website.
"He was always running and creating chances but at times he was unlucky not to score, now they are hitting the back of the net which is great.
"You can see he's enjoying the game, enjoying himself, he has the confidence, and if you have three goals in four games, as a striker, that's what's important."