Thirteen seconds after Fulham thought they had taken a shock lead at Anfield on Sunday, they found themselves 1-0 down.
Aleksandar Mitrovic headed in minutes before the break with the side bottom of the table having made a strong start to the game.
But the assistant referee controversially flagged the striker offside and after Liverpool goalkeeper Alisson Becker played the ball out to Mohamed Salah, the Egyptian raced clear before slotting past Sergio Rico.
Fulham defender Denis Odoi was beaten for pace by Salah and he showed composure to lift the ball over Rico in the Cottagers goal.
It was the big talking point of the first half with Fulham outraged to have had Mitrovic’s header ruled out with the striker appearing to be in line with Liverpool’s Andrew Robertson.
‘I think he is offside,’ former Liverpool striker Michael Owen told BT Sport.
‘(Aleksandar) Mitrovic is second from the back and I think a good half of his body is offside. It’s 100 per cent a guess. If you want to be pedantic the ball is still moving (when Alisson kicks it).’
Fulham whipped in a cross and Mitrovic rose highest inside the area to head into the net
The Cottagers striker made solid contact alongside a team-mate and ran off in celebration
The under-performing Fulham players ran off in celebration before it was ruled to be offside
While the ball was moving, Alisson played the ball out to right back Trent Alexander-Arnold
The rising young full-back lifted his head up as he wanted to set Liverpool away on the counter
Talk quickly turned to whether the league needs to see the introduction of the Video Assistant Referee and after Charlie Austin’s rant after Southampton’s draw with Watford on Saturday, Owen was quizzed on whether it would have cleared up the ambiguity over Mitrovic’s goal.
‘It’s going to try to clean up the game,’ he added. ‘Until we get it we are going to have these discussions every weekend. Referees are only human and you can forgive the linesman for that. I think he is just offside, Mark (Schwarzer) disagrees.’
The former Fulham goalkeeper was convinced the goal should have stood and believes the linesman guessed when making the decision.
‘It’s such a difficult call,’ Schwarzer, the BT Sport pundit, said.
‘It’s so quick and the linesman is not in line. I think he’s taken a guess at that. They have gone from a split second of celebrating. They have taken a quick free-kick and I think Denis Odoi has tried to play offside because he can’t keep pace with Salah.
‘VAR is going to eliminate a lot of controversial moments. It won’t eliminate all of them. But it will majorly reduce mistakes.’
Social media reacted to the momentum swing in disbelief with fans bemoaning the bad luck Fulham continue to suffer.