Three weeks after the original fixture at Wembley finished 2-2, Leeds United and Chelsea reconvened at Old Trafford to have another stab at the 1970 FA Cup Final.
As you might expect given the teams involved, both games proved to be exceedingly rough, with players knocking lumps out of each other left, right and centre as the likes of Jack Charlton, Ron Harris, Billy Bremner and Norman Hunter went at it.
The replay was arguably the filthier of the two ties, with (a then-record) 28 million people tuning in to watch a final that never really made it beyond the ‘glorified pub car-park brawl’ stage.
Referee Eric Jennings only showed one yellow card, and amazingly that didn’t come when Chelsea left-back Eddie McCreadie did his level best to actually kick Bremner’s head off his shoulders…
Indeed, Jennings waved play on as McCreadie made a half-hearted attempt to check his Scotland teammate for signs of life.
Chelsea eventually won the final 2-1 in extra time and both teams were by and large commended for their fearsome dedication to the cause.
In 1997, Premier League referee David Elleray retrospectively reviewed the final replay, ultimately concluding that six red cards and 20 yellows would have been administered by modern standards.
Two decades later still, there’s a very real chance that the army would have been called in and martial law declared.