Mikel Arteta was perhaps the coolest man inside the Emirates Stadium after Gabriel Magalhaes scored Arsenal's winner against Fulham.
The Gunners had to come from behind to maintain their 100 per cent start to the new Premier League season after Aleksandar Mitrovic opened the scoring 11 minutes into the second half before Martin Odegaard equalised by the fortune of a deflected effort which set up a grandstand finish.
Both sides had chances to take the lead, but in the end, it was Arsenal who took the spoils from this surprisingly feisty London derby when Gabriel took advantage of Bernd Leno - against his former club - failing to hold the ball from a corner to poke home from close range and spark wild scenes inside the ground.
READ MORE: Why Martin Odegaard shouted at Kieran Tierney as Mikel Arteta hails Arsenal's maturity
However, Arteta somehow managed to keep his emotions in check. As spotted on Reddit, after the ball hits the back of the net, the Gunners boss turns to celebrate only to immediately gesture towards making a substitution, and when play resumed, Takehiro Tomiyasu had replaced Gabriel Jesus.
Upon a closer look at the video clip, Arteta speaks to assistant coach Albert Stuivenberg before heading over to Tomiyasu, who was on the bench cheering the goal. It's quite clear that the message was for the Japan international to get ready as he had a part to play in helping the hosts see out the victory.
During his post-match press conference, a visibly delighted Arteta spoke about the importance of coming from behind: "We've grown up, we have more alternatives, I think we have matured as well," he told reporters. "Playing in front of these supporters helps because they are driving you as well, and then it's about belief. A lot of that is about belief and confidence that you can do it, and now we have that."
Furthermore, the Spaniard heaped praise on Gabriel after the defender atoned for his error which gifted Fulham the lead by coming up with the all-important winner: "It's just the reaction of everybody. After the goal, the stadium's reaction was just to give support to the player," Arteta added.
"Then the player has to show courage to continue playing. This is part of football, mistakes are part of it, and it's going to continue to happen. It's about how you respond to that, and I'm really pleased. It's not a coincidence because Gabby has changed his mentality, and the way he approaches every day is different to a year ago.
"How he looks after himself every day, what is most important in his life apart from his little daughter and his family and how consistent he is every day in his habits and how much he really wants to become one of the best," Arteta responded when asked to detail the Brazilian's change in approach and mentality.
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