Clyde manager Graham Roberts was ecstatic after his team's 2-1 win over holders Celtic in the Scottish Cup.
"I think both myself and Joe Miller have tears in our eyes," said Roberts. "It is the greatest day of my managerial career.
"I cannot quite believe it and at the moment - I'm very emotional.
"I think we deserved it, we played from the first to the last and created all the chances. Every player gave it their best and we knew we were going to win."
Craig Bryson and Eddie Malone scored for Clyde in the first half, while Maciej Zurawski ensured a nervous finish with a late goal for Celtic.
"We could have won by four or five," added Roberts.
"Everyone was saying the match was about Roy Keane making his Celtic debut but Gordon Strachan came to watch us last week and knew what to expect.
"Our players worked to the plan and worked hard through the game - it would have been an injustice had we not won.
"The players want to prove they are in a good team. They work hard and are always willing to learn."
Goal hero Malone insisted the result had come as no surprise to anyone involved with the Broadwood club.
Malone told BBC Scotland: "We knew if we got about them, we could get a result.
"So we are not surprised but it hasn't sunk in yet that we have created history. But we fancied ourselves.
"We saw they were vulnerable at the back against Hearts last week and we also went to Ibrox and got a draw over 90 minutes earlier the season."
Clyde now face a home tie against Gretna in the next round of the competition.
"It will be a very difficult game," said Roberts.
"It looks as though they will be coming up to our league next year but we will prepare properly and every team that comes here knows they are in a game."