Tyson Fury Knocks Austin Theory Stiff And Sings 'American Pie' At WWE Clash At The Castle

Cash in thwarted again.

Austin Theory tried to interrupt another main event, but was once again stopped from cashing in his Money in the Bank briefcase. With Roman Reigns and Drew McIntyre both down in their Undisputed WWE Universal Title bout at WWE Clash at the Castle, Theory hit the ring, looking to cash in.

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He was stopped as Tyson Fury decked Theory and knocked him out stiff with one punch.

The bell never rang on Theory's cash in, meaning he still holds the Money in the Bank briefcase.

At WWE SummerSlam, Theory tried to cash in, but he was beaten up by Roman Reigns and Brock Lesnar, who were fighting in a Last Man Standing Match.

Fury's night wasn't over as he entered the ring after the main event and shook hands with Roman. He then sang "American Pie" and Oasis with Drew McIntyre.

Fury is a retired heavyweight boxing champion who would famously put on a concert after winning his fights.

Fans can find Fightful's coverage of WWE Clash At The Castle by clicking here. Check out the post-show podcast for a full review of all the action by clicking here.

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