Ed Woodward is to leave his role as executive vice-chairman of Manchester United.
The news came amid widespread speculation a planned European Super League is set to collapse.
Woodward was reportedly one of the driving forces behind the planned 12-team breakaway, which was announced on Sunday.
The proposals proved hugely unpopular and drew widespread criticism from fans, pundits and players – including United's own Marcus Rashford and Luke Shaw – along with managers and politicians, with UEFA promising harsh sanctions for the clubs involved.
It is understood the 49-year-old Woodward was already set to leave the club at the end of 2021 and that he will continue to fulfil his duties until then.