Okazaki spent four seasons with the club — his first being the surge to the title under 'the Tinkerman', Claudio Ranieri.
But he admits to having regrets over his time there, despite more than playing his part in the overachieving squad.
He told The Sun: “There was a lot of support for me at Leicester and I just have gratitude for those people, but during those four years I had to revisit my value as a striker.
“It is very difficult to improve that in a short space of time. There were a lot of struggles I had to go through playing in a different environment.
“I was able to contribute to the team winning but within me personally I wanted to push myself more so I could contribute more.
“But I was also proud and really thankful for the experience I had with the Premier League.
Okazaki added: “That has added to my confidence and tells me what my mindset should be — how to have a winning mindset and how to win coming from a losing position.
“At the moment we are trying to do the same as we did with Leicester. We are solidifying mentally and physically to move forward."
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