Rotherham's goalless draw at mid-table Luton takes their survival hopes out of their hands ahead of the final round of Sky Bet Championship matches.
Victory on Tuesday night would have lifted the Millers out of the drop zone, above Derby on goal difference, but the draw leaves them battling alongside Sheffield Wednesday, with Wycombe needing a minor miracle to stay up.
Here, the PA news agency runs the rule over the four teams at risk of dropping down from English football's second tier.
Derby
Position: 21st
Points: 43
Goal difference: -22
Final fixture: Sheff Wed (home)
What do they need to do to survive? Victory would guarantee safety while a draw would be enough if Rotherham do not win at Cardiff, but defeat would send the Rams down as the Owls have a superior goal difference.
Rotherham
Position: 22nd
Points: 41
Goal difference: -16
Final fixture: Cardiff (away)
What do they need to do to survive? Win at Cardiff, and hope Derby do not beat Sheffield Wednesday.
Sheffield Wednesday
Position: 23rd
Points: 40
Goal difference: -21
Final fixture: Derby (away)
What do they need to do to survive? Beat Derby and hope Rotherham do not win at Cardiff.
Wycombe
Position: 24th
Points: 40
Goal difference: -33
Final fixture: Middlesbrough (away)
What do they need to do to survive? Win 13-0 and hope Wednesday win by one goal at Derby.