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In these tough economic times, people can't afford to simply throw away old clothes. So a massive pat on the back to the genius who has just ensured any Arsenal fan with an old Fabregas shirt can still make use of it.

No, we're not talking about angry Gooners using their old Fabregas tops as toilet paper.

You might be angry your former hero now plays for Chelsea, but Reddit user Fibonacci_ has stumbled across a way you can still proudly wear your currently worthless garment.

Your Fabregas shirt has number four on the back. Who currently wears number four for Arsenal? Per Mertesacker. What's Mertesacker's nickname? BFG (Big F*****g German). So peel off a few letters and tear off a few bits, and what do you get?

Like we said, genius.

Sadly, Fibonacci_ won't be wearing this shirt to The Emirates himself. When we got in touch with him to ask if he'd be taking it to a game, this was his response:

"Unfortunately, not any time soon. I'm American. I wanted to lend my friend a shirt to watch the semifinal match at a bar. I only owned Alexis and Fabregas, so I made the modifications."

Shame. Still, don't be surprised to see a few other fans make the same modifications and wear their old Fabregas Arsenal shirt to a match soon.

It's so beautifully simple…