The Blues boss is happy with his options in the goalkeeping department.
Chelsea’s most expensive goalkeeper Kepa Arrizabalaga made his sixth appearance of the season and led a young team to a 2-0 win against Brentford in the Carabao Cup quarter-finals.
He has been called upon when Mendy is unavailable and Thomas claims the goalkeeper’s hard-work in training hasn’t gone unnoticed.
“I am very happy in general. Happy is maybe not the right word, but I am super impressed with Kepa,” he said.
“It is not a surprise anymore because he is in the state of mind as a person, a character and a sportsman where he just delivers for us, because he does what he does best.
“This is what he shows every day in training and this is why he gets the reward. I am absolutely sure that this is the reason why he has these kinds of performances.
“I am super happy, we need him in this kind of shape. The goalkeepers are a strong group and Kepa is a big part of it.”