"I'm sure in one of the two next matches he will be on the pitch," Sarri told a news conference, suggesting Willy Caballero could continue in goal after making his first league appearance of the season against Tottenham.
"Kepa's the first choice, of course, he is very young, he's improving, we know very well that he can become one of the best goalkeepers in Europe," Sarri added.
"But in this moment we know that Willy is doing very well. He (Arrizabalaga) is very important in our group and dressing room, so we need to consider him."
Sarri said Chelsea's players had to take the opportunity to come closer together after the incident at Wembley last week.
"After a difficult situation, a group is not the same. So there is the opportunity to be better, and you have to take it," the Italian added.
(Reporting by Shrivathsa Sridhar in Bengaluru; Editing by Ed Osmond)
