Amir Khan's wife Faryal Makhdoom tricked him into thinking he had lost £2million on Friday and then filmed the reaction.
The boxer, 32, was furious and called Faryal, 28, a 'dumb f**k' after she confessed she had accidentally transferred £2m to their friend Sam's account - rather than the £20 she owed him - and Sam was no longer returning her calls.
The epic prank, filmed for Faryal's YouTube channel and later posted on Amir's Instagram, garnered a mixed reaction from fans- some who thought the joke was hilarious, while others hit out at Amir's degrading language.
Faryal managed to look convincingly guilty and continued to string him along for ten minutes before revealing it was an elaborate joke.
She tells him: 'Do you really think I'd give away £2m?' before falling into laughter.
Faryal uploaded a clip of the joke to Instagram and wrote: '2MILLION POUNDS TRANSFER GONE WRONG!!! can you just imagine @amirkingkhan reaction'.
The post gained a mixed reaction from fans, some of whom commended Faryal's epic prank, while others were horrified by Amir's 'degrading' language.
The couple are currently expecting their third child together.
Faryal recently gushed over her pregnancy body and claimed she 'doesn't even look pregnant'.
