Rowett: We weren't at the races
Burton manager Gary Rowett admitted his side dropped their standards in the 2-0 home defeat to Chesterfield on Sunday.
Two second-half goals from Jay O'Shea gave the Spireites the point which secured them automatic promotion to League One, while the Brewers' play-off preparations suffered a dent.
The Brewers boss said: "It looked like an end-of-season performance by us with nothing on the game.
"Whether the players were worried about picking up injuries or what I don't know, but if I was a player in that team I'd be worried I might not get selected for the play-offs.
"We didn't look anywhere near fit enough and we didn't do enogh on the ball. It's as bad as we've played all season.
"I'm hoping that's just a situation caused by the fact we're already focusing on the play-offs."
Rowett said the three teams he tipped earlier in the season had now secured promotion to League One.
"I said earlier in the season that Chesterfield, Rochdale and Scunthorpe were the teams I would put my money on," he said.
"I think those three teams deserve to go up - but we've still go a fantastic chance ourselves as along as we play an awful lot better than we did."