Port Vale boss Darren Moore blamed his relegation-threatened side’s dramatic 2-1 home defeat to Wycombe on a lack of concentration at the back.
Vale’s League One existence now hangs in the balance after a late Nigel Lonwijk strike means they are three points from safety with just two games left.
Wycombe took the lead in the fourth minute when David Wheeler was first to react after Connor Ripley had saved a close-range header from Sam Vokes.
Wanderers could have been two ahead just moments later as Wheeler again found himself free with just Ripley to beat, only to see his effort drift wide.
Vale’s only real effort of the first period fell to Ethan Chislett, whose long-range volley was spectacularly pushed over by Franco Ravizzoli in the Wycombe goal.
The home side began the second period brightly and were level just two minutes after the restart when Chislett slotted past Ravizzoli after finding himself in acres of space.
But with Vale pushing for that all-important winner in their battle to beat the drop, it was Lonwijk who popped up at the other end to win it for Wycombe and heap more misery on Moore’s men.
Moore said: “It was disappointing because you don’t want to lose a game in that manner.
“I really felt like we were in the ascendancy and if we kept our concentration we could get a chance to win the game, but we fell to a really late goal that absolutely knocked the stuffing out of the boys.
“We gave ourselves a mountain to climb after conceding that early goal and got back into the game early in the second half through Chislett to really give ourselves momentum and hope.
“I still felt that a chance was going to drop our way but what I didn’t envisage was our lapse of concentration at the back that has led to their goal.
“We’ve got two games remaining and we know what to do, we’ve got to dust ourselves down and get ready for another tough game on Saturday.”
Wycombe claimed a second consecutive away win.
Boss Matt Bloomfield said: “I’m disappointed we weren’t further ahead if I’m honest. We could have been three-up after 10 minutes and could and should have been out of sight.
“We knew it was going to be a tough game as Port Vale are fighting for their lives and have got some really good players, so to find an early goal and a late winner, I’m delighted.
“We needed to start the game on the front foot and the game plan was coming off and it wasn’t until the second half that they managed to break us down, but to find the character to go and get the winner was really pleasing.
“I stood on the touchline thinking this was a war of attrition and it was tough to get out at times, but we had fresh legs on the bench so I’m really pleased with the performance of the whole squad.”