Karl Robinson was "ecstatic" with his players after Milton Keynes Dons clinched a 2-1 victory at Oldham Athletic.
Robinson's side led 2-0 at half-time thanks to goals from George Baldock and Izale McLeod. And, despite former Dons striker Charlie MacDonald pulling one back for Oldham, they held on for a win which keeps them in play-off contention.
Baldock grabbed his first league goal after just four minutes, drilling into the bottom corner from the edge of the box.
McLeod converted Stephen Gleeson's through-ball to double the lead after 41 minutes, while Ben Reeves hit a post as Dons threatened to run riot.
Oldham improved dramatically after a triple substitution at half-time.
MacDonald headed in Gary Harkins' corner in the 57th minute, but the visitors held firm under pressure with goalkeeper David Martin bravely denying MacDonald in the closing stages.
Robinson said: "The way we won the game was testament not only to individuals but to the team.
"I couldn't be happier. Coming to Oldham on a Tuesday night, all the stats told you we would lose.
"To concede from a set piece was disappointing, but the way we rose to the challenge after that was tremendous.
"I'm ecstatic. I don't usually get this excited after a game, but we knew this would be difficult and to a man the players were sensational.
"I'm made up for George Baldock getting a goal. He got a terrible whack at Bradford on Saturday and it was touch-and-go whether he would play here.
"He has become a bit of a favourite with our fans and when I told him I needed him, he said he'd be ready."
Robinson also praised 17-year-old midfielder Dele Alli, adding: "He showed again that he's special.
"He had a row with their manager in the second half and I told him he'll be apologising for that, but his last two performances have been tremendous."
Oldham boss Lee Johnson blasted his side's abysmal first-half display.
Johnson said: "When you send out your team you expect them to at least do the basics.
"It was very poor from the first minute and horrible to watch. Everyone was moaning and Boundary Park wasn't a nice place to be.
"For some reason the players just weren't right, so I can only apologise for the first-half performance.
"I had no choice but to make all three substitutions and, although we had a go in the second half, it was too little too late.
"Maybe we could have equalised, but we didn't deserve anything after the first 45 minutes.
"We were totally outplayed and that's very disappointing for a manager because you lose a bit of faith in people.
"It worries me that we seem to have a group of players who will pick and choose when they have a lively day.
"Whenever we put in a decent performance, we then go and chuck in a game or a half like that."