Teams across the world have been warned to stop using the tagline 'Invincibles' after maintaining an unbeaten record across a season. 

That's because one of Arsenal's players from the OG 'Invincibles' team secured the branding rights and trademark of the term.

So, Falkirk, who recently went their League One title-winning season unbeaten, had better be careful.

Jens Lehmann was the man shutting opposition teams out when the Gunners went throughout the entire 2003-04 campaign without losing under the guidance of Arsene Wenger.

It's coming up on the 20th anniversary of one of football's all-time great achievements.

And the German has plans to celebrate it after forking out £30,000 to gatekeep the slogan.

He told the Daily Mail: "I had the idea because the name 'Invincibles' becomes more and more popular approaching the 20th anniversary.

"Nobody had it, so I was looking into it. I was ready to get the branding rights for our group, so everybody who’s using it is violating our brand.

‘Sometimes you have guys from across Europe, Africa or Asia who
are using it.

"They could have done that without permission and named themselves 'the Invincibles whatever'. They can’t do it anymore."

He's aiming to gather all of his ex-teammates and Wenger into one company, so that they can share it together. 

He added: "It’s easier to get all the members of our group in one company because you have costs and income created.

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"The company gets the revenue and then hopefully everything is
shared. If we have income, we are going to do something for a charity."

Of course, Celtic, under Brendan Rodgers, enjoyed an unbeaten campaign during the 2016/17 season.

They heavily used the term 'Invincibles' as part of their branding to celebrate the achievements of the team.

Not only did they win the Premiership title, they won both domestic cup competitions in Scotland that year. 

They repeated the treble in the following year - and the year after that - however, they have not managed to go a full season unbeaten again. 

If they do, then they'll know they can't use the aforementioned moniker they previously did.