McAllister had seen his Leeds side lose their last five matches
Leeds United have sacked manager Gary McAllister after 11 months at the club.
The club made the decision following a run of five successive defeats which dropped Leeds to ninth in League One, five points off the play-offs.
"The decision was made to ensure that the new manager has the maximum number of games possible to move the club up the table," read a statement.
McAllister, 43, who replaced Dennis Wise in January, saw his side lose 3-1 at MK Dons in his last game in charge.
Leeds said they had made the decision to dismiss McAllister to give his successor time to "identify any new players he thinks can strengthen the current squad" before the transfer window opens in January.
I'm sure Ken Bates has got somebody lined up. He won't have made this decision without having somebody ready to go
Danny Mills, former Leeds player
"The club would like to place on record its thanks for the loyal service given to Leeds United by Gary since joining the club as manager in January 2008, and wish him every success in the future," added the statement on the club's website.
"The club will make no further comment on a replacement until we are in a position to make an appointment, which we are committed to doing as quickly as possible."
Saturday's defeat at Milton Keynes marked a fourth consecutive league defeat for the Elland Road outfit - a losing streak compounded by defeat at Histon in the FA Cup last month.
Leeds sit 15 points behind League One leaders Leicester, who they face on Boxing Day, and five points off Oldham in sixth place, with 10 wins from 21 league outings.
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