Football fan @sxmleach made a bold claim last month as rumours gathered pace that Lacazette may be heading to London.
He wrote: "If Arsenal sign Lacazette i'll get a tattoo of his face somewhere on me body."
The Frenchman duly signed for a club-record fee of £46.5million a week later and @sxmleach kept his word.
He duly posted a picture of the completed tattoo with Lacazette's smiling face on his rear end.
The Arsenal fan kept his word to get Alexandre Lacazette's face tattooed on his backside
Alexandre Lacazette was the second highest goalscorer in Ligue 1 last season with 28 goals
The striker has been backed to shine in the Premier League by fellow France international Olivier Giroud.
He said: "He is a good player so it is always easy to play with this kind of player,’ Giroud said after the game.
"We have a good understanding and had the opportunity to play a little bit in training with France.
"I think he will settle well to the Premier League."
Arsenal accidentally leak their new away kit Sun, July 16, 2017
Arsenal have accidentally leaked their new away kit before its official launch!
Play slideshow 1 of 8
Get Quotes on Home Insurance
Lacazette, 26, has won 11 caps for France and was the second-highest scorer in Ligue 1 last season with 28 goals.
After joining Lacazette said: "Arsenal are the club that plays the best football in England so I really wanted to come here.
"Throughout my childhood and thanks to Arsenal's former striker Thierry Henry and other French players, I always dreamed of playing for this club so that dream has been fulfilled.
"I like clubs with a history and the fact that the manager has been here for a while shows that it is a stable club. There are quite a few French players at the club which will make it easy to settle in."