A jubilant West Ham fan came good on his promise to get a tattoo of the score and scorers in the event of his beloved Hammers winning at Arsenal, which they did 2-0 yesterday.

PLUS! DON’T MISS: The best Arsenal jokes after opening day defeat to West Ham

The supporter, who goes by the Twitter handle Waller, took to the eminent social media platform to make his vow, the likes of which are becoming increasingly common and harder to renege on now that everyone’s watching.

Here is said tweet…

If West Ham beat arsenal today I WILL get the score line and date tattoo'd on me

— Waller (@waller_whu) August 9, 2015

Slaven Bilić’s side, which included 16-year-old debutant Reece Oxford, triumphed at the Emirates thanks to goals apiece from delightfully rhyming duo Cheikhou Kouyaté and Mauro Zárate.

Suffice it to say, Waller the West Ham fan was then duty-bound to follow up on his promise – and in a smooth twist, it didn’t even cost him a dime…

I got it paid for by an arsenal fan 😂 https://t.co/2haZ8Ize8y

— Waller (@waller_whu) August 9, 2015

Nicely done, old boy.