Mark Allen and Wu Yize play out the most bizarre frame in Crucible history as referee claps back at fan

Mark Allen and Wu Yize's World Snooker Championship semi-final has gone viral after one of the most bizarre frames in the sport's history.

Wu started the afternoon 6-2 ahead after a commanding performance on Thursday.

Allen knew he had to put in a big performance to catch the 22-year-old, who has all the tools to win the entire tournament.

What Allen needed was all the luck in the world, and he got the total opposite of that in the 14th frame.

The Northern Irishman managed to get himself 43-13 ahead, and it looked to be plain sailing from there.

What followed saw everyone in the crowd and watching at home scratch their heads in total disbelief.

Allen and Wu managed to get themselves in a position that saw every single red ball stationed in the bottom right pocket, obstructing the black. Neither Allen or Wu wanted to make any wrong moves.

That saw them then decide to tap the red balls for what felt like an eternity. Check out the footage for yourself below.

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It resulted in no ball being potted for 50 minutes and a very unhappy crowd. One spectator even decided to send referee Marcel Eckardt a very clear message. He audibly shouted out: "Can we have a rerack?"

The referee decided to snap back with a message of his own, stating: "Thanks for the advice, but we can do it without you."

He later suggested a rerack would be required. Allen, visibly frustrated with what had gone on, took matters into his own hands. He hit into the pack of reds with too much force, sinking the black and giving Wu a major advantage.

Fans online reacted to the footage and still can't wrap their heads around it.

One person said: "Goodness, the frame we have just seen between Mark Allen and Wu Yize should be studied."

A second added: "The never-ending frame between Wu Yize and Mark Allen," while a third joked, "What on earth did I just watch?"