David Moyes is sacked after less than a year as Manchester United's manager, with the club lying seventh in the Premier League.
Sir Alex Ferguson chose the 50-year-old to succeed him when he retired after 26 years in charge last summer. Moyes left Everton and signed a six-year deal with the Premier League champions.
In a statement, the club said it "would like to place on record its thanks for the hard work, honesty and integrity he brought to the role".
Player-coach Ryan Giggs is expected to take charge of United for their next game, at home to Norwich in the Premier League on Saturday.
BBC Sport's David Ornstein reports.
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