Kieffer Moore celebrates after scoring Wrexham's fourth goal against Sheffield United.
The Welsh international bagged a double as Phil Parkinson's side produced a remarkable fightback from 3-1 down to overcome his former club Chris Wilder's men in a pulsating 5-3 second-tier contest.
Patrick Bamford's excellent first-time shot put United ahead, but the hosts levelled almost immediately thanks to a Tyler Bindon own goal.
A quickfire double from Bamford and a close-range header seemingly have handed United in command at 3-1, before Moore reduced the arrears with a thumping goal of his own.
The winger's glancing effort early in the second half brought the scores level, before Moore to put Wrexham ahead for the first time with 14 minutes left to play.
Josh Windass' confident penalty late on wrapped up the points, halting a sequence of five matches without victory for the promoted side.
In their previous meeting in the FA Cup back in 2023, it finished in a epic six-goal stalemate.
This latest clash provided another high-octane, dramatic chapter in their growing rivalry.
Backed by Hollywood owners, the club's meteoric ascent through the leagues has brought them back to the Championship for the first time in 43 years.
Coming into this Boxing Day match on the following a poor patch of form, the boss had demanded a return of the famous fighting qualities from those cup ties.
His team certainly delivered, battling back from a 3-1 deficit to secure a famous 5-3 victory that highlights their resilient character.
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