Rotherham took a huge step towards retaining their Championship status by thrashing relegation rivals MK Dons.
Matt Derbyshire struck in the first minute before Leon Best scored from the penalty spot after goalkeeper Cody Cropper brought down Richard Wood.
The visitors confirmed their dominance through Kirk Broadfoot’s header and Richard Smallwood’s neat finish.
Rotherham, 21st place in the table, moved nine points clear of MK Dons, who remain third bottom.
The atmosphere inside Stadium MK was tense before kick-off, but almost immediately the Rotherham fans were celebrating as Derbyshire opened the scoring.
Best then slammed home from the spot, and it was no surprise when Broadfoot and Smallwood put the game beyond MK Dons just after the break.
Ex-Miller Alex Revell almost pulled one back for the hosts, but Rotherham easily held on.
Despite languishing in the relegation zone in mid-February, Neil Warnock, Rotherham’s third manager of the season, has turned his side’s fortunes around, winning six of his 11 league games in charge.