The goalkeeper made headlines for all the wrong reasons in the final against Manchester City, as he refused to be taken off in added time.
Arrizabalaga had kept a clean sheet during regular time, as the minutes wound down before penalties.
With minutes remaining, Kepa went down injured, and appeared set to be taken off with cramp.
However, the Spaniard refused to be taken off, and shouted at head coach Maurizio Sarri that he was okay and didn’t need to be substituted.
Despite having Willy Caballero on the sideline ready to be brought on, the Italian boss relented and Arrizabalaga stayed on.
And Arrizabalaga revealed to the Daily Mail that only afterwards did he realise that Sarri wanted Caballero on for penalty duty.
“The only thing I wanted to say was that I was not injured and I was OK to carry on,” Kepa explained.
“I was not thinking about the penalties. I wasn’t totally aware of everything that had happened.
“It wasn’t until I looked back for the first time at the images that I realised. I saw it from a different perspective.
“Until that point, it was like I was in a bubble and wasn’t conscious of what was going on.
“I started to see it all when I arrived home for the first time and saw the video.
“That was the first time I realised what happened. I’ve learned a lesson and the next time it will be different. When I am asked to change, I will change.”
Arrizabalaga was fined by Chelsea, and was dropped for the game against Tottenham, but the star is under no illusions about the seriousness of his mistake.
“I accepted what the manager said and the club fine and I realised I wouldn’t play the next game,” he continued. “I was right behind Willy and supported him and the team as much as I could.
“Of course, that was the only thing I could do. It was something I did in the heat of the moment. It’s something I am not very proud of.
“It was a difficult moment which I’ve learned from and I’m still learning from. Now it’s time for me to look forward.”