Second division St. Pauli's keeper Philipp Tschauner had come miles out of his box in the last minute of the game against Paderborn - muscling in among his teammates for a corner kick just before the final whistle.
He leaped up and headed the ball into the net in front of a home crowd of more than 28,000 at Hamburg's Millerntor Stadium.
The header helped Pauli secure a 2-2 draw.
"It's unique - something you've always dreamed of," Tschauner said, with tears in his eyes. "I'm just happy that I got the chance to experience it during my football career."
The last-minute goal sparked celebrations on the field by Tschauner's teammates - and garnered special praise from Pauli coach Michael Frontzeck.
"Tschauni really got it in there," he said. "He's just a big guy who's difficult to defend against. It was a really important point for us today."
Tschauner's header kept 12th-placed St. Pauli from sinking further in the second-division standings. With 33 points, they're just nine away from the relegation zone.
After a scoreless first half, Pauli were the first to strike, with a goal by Marius Ebbers in the 53rd minute. But Paderborn's Deniz Yilmaz fired back with the equaliser just three minutes later, putting the guests on the board.
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Less than half an hour later, former Pauli striker Mahir Saglik had his ex-club playing catch-up, with an 84th-minute goal that gave Paderborn the lead. Tschauner took the other end of the field before the final whistle to secure the game-saving goal for Pauli.