Graham Potter has verbally agreed to become Chelsea's new head coach, as reported on Sky Sports News.
The 47-year-old will continue talks with Chelsea's new owners, but is now expected to leave Brighton for their Premier League rivals.
Potter should now become the first managerial appointment of Chelsea's new era, with the ambitious US owners determined to install a manager at the Stamford Bridge helm for the long-term.
Potter is expected to have his Chelsea deal finalised in time for him to take charge of Saturday's Premier League trip to Fulham.
Chelsea are understood to have made initial contact with Mauricio Pochettino and Sporting Lisbon boss Ruben Amorim, as were also considering Zinedine Zidane and even Leicester's Brendan Rodgers.
But Potter has always been considered the top target of the club's new board.
Tuchel was sacked by Chelsea on Wednesday morning, amid mounting arguments with the new board and growing issues with the Stamford Bridge players.
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