Chelsea have announced the arrival of the Italian as their new boss to replace Mauricio Pochettino, who left at the end of last season.
Maresca has signed a five-year contract with Chelsea with an option of another year following talks with the Blues.
Leicester have received adequate compensation from Chelsea for Maresca who masterminded their promotion-winning campaign last season.
However, his departure has left a bitter taste in the mouth of the newly-promoted Premier League side.
Leicester held lengthy discussions with Maresca following the end of last season on the issues they felt last year.
There was a clear understanding between the two sides on their approach ahead of their Premier League return.
Leicester felt that there was a commitment between both sides to start the season together.
The Foxes are now in the market for a new manager while planning for life in the Premier League.
