NEIL Harris admitted “we owe Peterborough one” ahead of the sides’ League One meeting at The Den on Tuesday night.
Millwall were thumped 5-1 at London Road in August, a performance Harris said was “one of the worst” in more than 100 games as first-team manager.
The Lions had started the season positively after losing the 2015-16 play-off final, winning two of their first three games.
But they were routed in the next as Peterborough went 3-0 up inside the first 20 minutes to leave Harris furious with his players.
Peterborough are just two points behind Millwall going into the clash as both eye a promotion challenge, and Harris admitted the result earlier this season will give them added motivation.
“I think it was probably one of the worst performances during my time in charge over a two-year period,” Harris said. “It was a low point for us on the back of a really good pre-season and first few games. It was a real down-to-earth bump.
“It’s certainly in our minds approaching the game that we owe Peterborough one.
“I don’t often talk about disappointment and revenge but in this case it’s certainly one of those. We let ourselves down at Peterborough and we want to put that right.
“That was our first sign that there was perhaps a hangover after the play-off defeat at Wembley. It was one we hoped wouldn’t materialise but did.
“It was at the stage where we had a lack of form with big players for us but over a period of time they found their form and consistency again.
“If we need reminding how important it is to be organised and defensive-minded and do our jobs properly then it will be against Peterborough on Tuesday because they are a really attack-minded side and very unpredictable.
“They have players with real ability that we have to be at our best against to keep a clean sheet. We have to be more clinical than we have been in the last two games.”
Image: Millwall FC