Mendy joined Chelsea from Rennes due to Kepa Arrizabalaga’s inability to establish himself as a reliable shot-stopper during his first two seasons in England.
The Spain goalkeeper’s series of poor performances and high-profile errors forced Chelsea to defray the asking price of Rennes to secure the services of Mendy before the summer transfer window was closed.
The 28-year-old has fit in perfectly conceding only two goals in his first nine matches for the Blues, keeping seven clean sheets in the process.
Ahead of Chelsea’s trip to face the Ligue 1 outfit in the Champions League on Tuesday, the English coach was asked about Mendy’s impact since his arrival at Stamford Bridge and Lampard said:
“I’ve been really pleased. It’s not easy, and he’s made it look easy, which is the difficult thing.
“When you come from another league, there are, of course, differences in the Premier League – the physical nature, the speed of the league – and I think it is unique in those terms.
“For a goalkeeper that has got such a spotlight on him and is having to face these differences and make relationships with the team around him, he has done it very seamlessly.
“He has settled off the pitch and is performing on the pitch, you can’t ask any more than that, and he is doing it with a smile on his face and with a really great attitude.
“So I’m really pleased, it’s a good start for him in a Chelsea shirt. Long may that continue.”