Liverpool vs Roma: Linesman's flag falls off in Champions League semi-final first leg at Anfield – sparking magical response on social media

And the same could be said for a red-faced linesman when he lost his flag during the semi-final first leg at Anfield.

Fans on Twitter were quick to poke fun at the official, who briefly looked more like a conductor than a linesman.

After the flag fell off his stick, he still raised his arm, trying to signal a decision with his bare-looking baton.

But it just made him look even more absurd.

One supporter tweeted: "Harry Potter now doing linesman duties.."

And another joked: "First sub of the game (?)"

Out in the middle the action was just as crazy – but for more normal reasons.

Liverpool kept the pace up against the Serie A side who KO'd Barcelona so magnificently in the last eight.