Barcelona star Xavi told teammate Lionel Messi to stop f***ng around following the club's 1-0 defeat to Real Sociedad earlier this season.
This has been reported by the Daily Mail, who claim that the Spanish midfielder had a stern word with Messi following a number of controversial acts from the Argentine.
The report reveals that Messi and manager Luis Enrique had a spat before the clash with Sociedad, whilst the versatile forward was then placed on the bench for the game with David Moyes' side.
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It was after this game, however, when Xavi took Messi to one side, as the forward called in sick for training on the Monday.
Xavi, then, reportedly asked Messi whether he wanted to see Cristiano Roanldo win the Ballon d'Or once again, and insisted that the side couldn't allow last year's failure under Tata Martino to happen in this campaign.
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The report claims that Xavi said this to Messi: 'We can't allow ourselves to repeat what happened last season and you know it. 'Do you want Cristiano to win the Ballon d'Or again? Stop f***ng around, Leo!'
Ultimately, Messi has responded in style in the second half of the campaign. The Argentine superstar has been the catalyst to Barcelona's success, which has seen them secure the La Liga title and reach the Champions League final.
Messi, of course, struck the winner against rivals Atletico this past weekend to make sure of league success, whilst he played a huge role in helping his side overcome Pep Guardiola and Bayern Munich in the Champions League semi-final.
And, unsurprisingly, Messi and Ronaldo are still way out on their own as the world's best players. Of course, many will suggest that the Argentine ace has overtaken Ronaldo in recent months as he's helped guide his side to incredible success on the club scene.
It must be noted, however, that despite Messi's glorious recent form, Ronaldo has netted on 45 occasions in La Liga this term, while the Barcelona star has struck 41 times, with just one game remaining in Spain's elite division.
Messi, though, may well stamp down another marker in next month's Champions League final as the Catalans go about beating Italian champions Juventus. One thing's for sure, these two will continue battling each other at the top for a couple of years yet. It's a quite remarkable rivalry.
Is Messi the world's best? Have your say in the comments section below!