The Portugal goalkeeper is expected to complete his move to Stamford Bridge after appearing in the Croatian club's Champions League win over Red Bull Salzburg
The Portugal international played in Dinamo's extra-time victory over Red Bull Salzburg, which secured their place in the Champions League group stage.
And after the match he admitted it had been a bittersweet evening for him as he prepares to head to Stamford Bridge.
"At the same time I am happy and sad," he told Dinamo's official website. "This was a beautiful story, but I got a chance to go to a big club. It is the opportunity of lifetime and I think I deserve it.
"I am leaving Dinamo with the club qualified for the Champions League and I am thrilled with that success. I hope people will remember me in Zagreb as a person that always gave his best for the club and the fans and that everyone will keep a nice memory of me.
"I sure will have great memor of Dinamo and Zagreb and all people I played and worked with here."