During the summer, Ferguson used Cech as a reference point when explaining why he had spent so much money on David De Gea.
Cech admits it is pleasing to gain praise from such a reputed figure, and believes De Gea is learning fast at Old Trafford.
"I think you can see the difference of what it is to be a goalkeeper here and in La Liga and I think he is learning fast," Cech told chelseafc.com "You can see every game he has played since he arrived he is improving and getting more settled. The game at West Bromwich, you could see the surprise on his face how difficult it is here and how physical it is. If you see Spanish football he has never experienced that.
"But against Arsenal he saved a penalty which changed the game, it was an important save and without that it could have been a different story. He had a good save at Bolton at 0-0, and he is improving every game but we'll try to test him again."