Chris Wilder was a relieved man after Northampton beat his former club Oxford Utd 3-1 to preserve their 94-year Football League status.
Home grown Ivan Toney played a big part in helping Cobblers avoid relegation, setting up the equaliser for John Marquis to cancel out Ryan Williams' opener and heading home the second goal.
Williams' red card shortly after his opener did not help Oxford's cause and substitute Mathias Kouo-Doube's goal shortly after the restart settled Northampton's nerves.
Wilder said: "I'm drained but elated that we've stayed up. I had a quick chat with the players and it's strange because this is the last time you're all together so I thanked them for all their efforts.
"I've never wavered in my belief that these were a group of Football League players but we've had to work extra hard to get the results.
"We've been one of the form teams over the past few months and people were saying we were dead and buried so the players deserve an enormous amount of credit."
Looking back on the final day victory, Wilder added: "I can't do anything about the decision to send their player off but I felt we played very well against 10 men, which is sometimes hard to do.
"We could have gone in at half time with a bigger lead, the players are sure Zander's [Diamond] effort was over the line.
"But we can't complain. We needed two big performances in the last two games and the players have given me them. All credit to them for that.
"We never ever contemplated going down and were 100 per cent confident we could turn it around.
"The players wanted to play for this football club and get results, and they've that. Now the players can enjoy the back of the season and prepare for a lot of hard work in the summer."