The Reds opened up a four-point lead over Manchester City at the top of the Premier League standings with a 1-0 win at the City Ground, ending a run of 13 league games without victory on the Tricky Trees' turf.
Liverpool would seemingly be consigned to take home just one point from Nottinghamshire, but with 99 minutes on the board, Nunez's deft header from Alexis Mac Allister's cross nestled into the bottom corner to spark ecstasy in the away end.
Nunez's goal went down as Liverpool's latest-ever winning goal on record in the Premier League — and the 10th latest in the history of the competition — but Nottingham Forest were left enraged at the full-time whistle owing to a controversial call from Paul Tierney.
Ibrahima Konate dropped to the turf with an apparent head injury as a cross was swung into the Liverpool box, and Callum Hudson-Odoi picked up the loose ball outside of the area and took a couple of touches before Tierney blew his whistle.
Under FA and IFAB rules, the ball can only be dropped for the defending team if the ball was in the penalty box or last touched in the area before play was stopped, otherwise the drop-ball is awarded to the side of the player who last touched it.
With Hudson-Odoi regaining possession of the ball before play was halted, the call should have gone Forest's way according to the laws of the game, but Liverpool were instead awarded the decision and quickly went up the other end of the field to break Forest hearts.
Unsavoury scenes at the end saw several Tricky Trees representatives remonstrate with
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