Frank Lampard has admitted Edouard Mendy has already become Chelsea's first-choice goalkeeper, ahead of Kepa Arrizabalaga.
The former Rennes stopper helped the Blues secure Lampard's first goalless draw as Chelsea boss in Tuesday's Champions League stalemate with Sevilla.
Asked if Mendy is already Chelsea's number one keeper, Lampard said: "At the moment yes; he's shown his quality.
"The way he's played, he's played very well, that's two clean sheets for him already.
"As it stands he is (the number one) but that's always up for grabs. But the way he's playing I'm very happy.
"I was pleased with the professional element to the win.
"Sevilla are a top team in European football, no doubt. The concentration and focus to get the result was big from the team.
Out-of-form Kepa Arrizabalaga dropped to the bench on Mendy's return after another afternoon to forget in Saturday's 3-3 draw with Southampton.
Chelsea were solid against Sevilla if a little uninspiring in attack, though the Blues will be delighted with an improved defensive showing.