Fleetwood boss Charlie Adam admitted his side were masters of their own downfall after being left on the brink of relegation from League One following a 4-1 defeat at Peterborough.
The Cod Army are facing up to a future in League Two after being left six points from safety with just two games to go.
They only have themselves to blame after Promise Omochere and Bosun Lawal both missed penalties before Adam’s men were put to the sword by play-off bound Posh.
Lawal fired Fleetwood ahead after just 13 seconds and then earned the ninth-minute penalty that Omochere saw saved by Posh keeper Jed Steer.
Malik Mothersille fired Posh level with his first English Football League goal and the game was still in the balance when Lawal was denied from the spot by Steer with 15 minutes to go.
Posh then took command with Archie Collins’ 81st-minute strike being followed by a stoppage-time brace from substitute Jonson Clarke-Harris.
Adam admitted: “I’m gutted for the players and supporters. That performance did not deserve that result.
“To come here and show the character that we did, I’m really proud of the players, but we walk away extremely disappointed.
“We had the perfect start, but when you get big moments in games you have to take them and we have missed two penalties.
“The two lads stepped up and were brave enough to take them, but unfortunately for us they missed them.
“The dressing room is quiet and flat. Of course it’s going to be as we’re in a position we don’t want to be.
“We have to win two games and see where we are at the end of the season.
“The lads will be off tomorrow, we’ll come back in Thursday and prepare as we always do. The challenge is to finish on two positive results to take into next season.”
Peterborough are six points off the automatic-promotion spots with a game in hand.
Boss Darren Ferguson said: “Starting the game in the way we did – conceding a goal like that without even touching the ball – is bordering on the unprofessional.
“I never felt comfortable throughout the game, but we managed to get the reaction we wanted from Saturday by winning the game.
“If I was Charlie I would be really disappointed with the two penalties as they’ve both been pretty comfortable saves for Jed. It was a case of getting out of jail really for us.
“Jonno came on, set one up and scored two; Jed made the two penalty saves; Malik came in and scored so there were positives for sure, but there are things we have to tidy up.
“We’re in the play-offs now and another point secures us being at home in the second leg.
“Second place is obviously Derby’s to throw away but football works in many strange ways and they still need a win.”