What Kai Havertz did after Arsenal 'goal' to infuriate Chelsea as controversial gesture explained

Kai Havertz put his finger to his lips before letting out an almighty roar after he thought he had put Arsenal ahead against Chelsea. The 25-year-old forward, who swapped Stamford Bridge for the Emirates Stadium last year, appeared to have fired the Gunners ahead on the half-hour mark.

Declan Rice caught the Blues off-guard with a quick free-kick, slipping Havertz in-behind. The former Chelsea ace let the ball run across his body, blocking Moises Caicedo from making a challenge and, as Robert Sanchez closed down the angle, he poked the ball into the bottom far corner.

Havertz wheeled away in celebration and, pulling no punches against his former club, he put his finger to his lips before letting out a roar. The Germany international infuriated the home faithful, who had the last laugh.

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After a review from the Video Assistant Referee, Havertz was adjudged to have been offside, so his goal was ruled out. An official statement from the Premier League addressing the incident reads: "Havertz’s goal was initially awarded on-field. VAR checked and confirmed that Havertz was in an offside position and recommended that the goal was disallowed."

Despite leaving Chelsea to join a London rival, the German didn't necessarily leave on bad terms after a largely underwhelming spell in west London. But, shortly after penning a deal with Arsenal, comments about the Champions League would later incense Blues supporters.

"It was a good moment for me in my career and something that I’m always going to think about," said Havertz earlier this season when asked about his history on the European stage. "It’s a nice feeling but it would be even nicer if I can do it with Arsenal and it would mean a lot more.

"We know now how tough it is to go far in that competition from last year. Especially last year, away in Germany it wasn’t our best game but I think we grew up and we are one year older now, so I hope we’re going to have a great competition. It’s a long way but I think we’re all ready for it.

"If players ask me about it I tell them, but I think it’s just something new now. We have lots of players already that have played in the competition and now it’s a new competition with more games. I help where I can but it was three or four years ago that I won it, so a long time ago, so I think I have to prove myself again in the dressing room."

Havertz added: "The journey is good for sure. It’s my second year and I’m very happy to be here. My development has been quite good. It took some time for me personally to fit in fast but it took me two or three months to get used to everything, to get used to the system, the teammates, the coach and it’s always a big step when you move to a different club, but I feel very good and ready to play.

"For me it was always like that. It was the same when I moved the first time to England. I think it’s quite normal, I think it just depends on your personality and how you are. Sometimes a player does it quite fast, for me it took a while, so I think it’s different from person to person."