Speaking to the club's official website, Nottingham Forest caretaker manager Paul Williams has said it was "mind-boggling" to see so many of the club's fans make the trip for Saturday's end-of-season 2-1 win at MK Dons.
Chris Cohen opened the scoring for Forest on eight minutes, before Nick Maynard levelled for the hosts 10 minutes later in a fast-and-furious start to proceedings at Stadium MK.
But the visitors' hopes of victory suffered a huge setback seven minutes before half time when Daniel Fox was shown a straight red card, plunging the Reds' chances into doubt.
Despite the numerical disadvantage, fit-again striker Britt Assombalonga netted a 74th-minute winner to send the 4,000 visiting fans wild.
Forest had absolutely nothing to play for on the final day of the Championship, but still thousands packed into the away end, and Williams was taken aback by that level of support.
"It was kind of mind-boggling, the number of fans we had here today when we had nothing to play for," he said to Forest's website. "It’s amazing and shows you the size of Nottingham Forest."
Williams's side finished the Championship season in 16th position following a testing campaign which saw manager Dougie Freedman fired in the middle of March.