It was a result no-one saw coming. Nottingham Forest started the day bottom of the Premier League table. Liverpool had just won three in a row, including a magnificent 1-0 victory over Manchester City.
When referee Paul Tierney blew his final whistle to confirm Forest's surprise 1-0 win, Liverpool's winning run was in ruins, with the Reds still without an away win in the league this season.
"It feels as low as possible," said Liverpool boss Jurgen Klopp. "Massive, massive blow because I have no idea how we can lose this game to be honest."
While Klopp was conducting an inquest into his team's third league defeat of the season, his counterpart Steve Cooper was wondering if this could be a season-changing result.