If Sheffield Wednesday and Brighton thought having Premier League referee Andre Marriner overseeing their Championship Play-off game might reduce any potential controversy, they were wrong.
Sheffield Wednesday appeared to have taken a 1-0 lead in the first leg at Hillsborough when Fernando Forestieri had the ball in the back of the net after 19 minutes - but it was belatedly disallowed for offside.
Fernando Forestieri's reactions before and after his opening goal was ruled out for offside.
Huge call. pic.twitter.com/tENYyLeO2w
-- Squawka Football (@Squawka) May 13, 2016
The Italian was in an offside position when Keiren Westwood booted the ball upfield, but was back onside when Gary Hooper appeared to flick the ball on.
Replays suggested the former Celtic man did not get a touch, so the decision was correct - but the fact the assistant referee Darren Cann didn't seem to raise his flag created a world of confusion.
Linesman doesn't give it until approached by Brighton players. Then decides to give offside 1 minute after goal. #swfc
-- Almost Ian Gascoigne (@IanGas) May 13, 2016
-- John Bennett (@JohnBennettBBC) May 13, 2016
It left Wednesday fans very angry.
This is already a exhibition how a referee or group of referees can cost a club 200 million ..... #SWFC
-- Michael Vaughan (@MichaelVaughan) May 13, 2016
-- SheffieldFC Scores (@SheffieldFC_com) May 13, 2016
-- Ladbrokes (@Ladbrokes) May 13, 2016
Outside of Sheffield, not many people could see what all the fuss was about.
People thinking the officials have got that wrong?! Have a day off, he's about 10 yards offside when the ball is kicked
-- Rob Washford (@RobWashford) May 13, 2016
Seriously, I've just watched again and it's blatantly offside. Why is anyone confused?? #swfc
-- Mark Simpson (@MarkSimpsonHUFC) May 13, 2016
Controversy? Miles offside & no flick on. Easy & correct decision. Offside. Don't understand how anyone can see it differently! #playoffs
-- James King (@james_king_88) May 13, 2016
Whatever the rights or wrongs, one person came up with the perfect solution.
My mums reaction to that offside decision.. "They need goal line technology"
But it didn't matter much anyway - Wednesday were 1-0 up at half-time thanks to Ross Wallace's goal.