Former Chelsea player and Assistant Manager Gianfranco Zola has highlighted areas at which kepa arrizabalaga could improve on after the Spaniard has lost his place in the first team in recent weeks.
"He is a goalkeeper with a great ability to play with his feet, which right now is one of the most important things because the way the teams play requires that characteristic," Zola told Goal.
"He has good reflexes and is very strong, he has a great physique for the goal.
"Although, in my opinion, there are two areas in which he should improve.
"The first, when a defender goes out to clear, he must be more forceful and offer greater security. The second is his character, he has to be stronger mentally.
"But it is normal, it is his second year in the Premier League, his second year in a team like Chelsea that has many ambitions and demands a lot from the goalkeepers.
"I appreciate Kepa very much. I think this year he is receiving more shots than last season and that is affecting him. For me, he is one of the best goalkeepers of this moment."