Nottingham Forest have sacked manager Colin Calderwood following a 4-2 Boxing Day drubbing at home to fellow strugglers Doncaster.
The result saw Forest remain in the bottom three in the Coca-Cola Championship, where they have won just four times this season since their promotion from League One.
First-team coach David Kerslake has also left the club and chief executive Mark Arthur said: "We're grateful to Colin for his efforts over the last two and a half years, in particular for leading us to promotion from League One. But we're in a results business and it's imperative that the club stays in the Championship."
He added: "We need to find ourselves every opportunity to do that."
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