A statement on the Manchester United website said:
The thoughts of everyone at Manchester United are with the Glazer family tonight following the news that Malcolm Glazer has passed away. He was 85.
The news was announced earlier on the official website of the Tampa Bay Buccaneers, the NFL franchise he acquired ownership of in 1995.
Malcolm leaves behind his wife Linda, six children and 14 grandchildren.
Staff at Manchester United extend deep and sincere condolences to them all at this difficult time.
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