Chelsea captain Cezar Azpilicueta's mind games played a huge part in the Blues winning the Club World Cup as he fooled Palmeiras by pretending to step up to take a penalty in the dying stages in their 2-1 victory in the final.
The ball fell for Azpilicueta and his shot on the volley fairly cannoned off the hand of Luan, which was somewhat carelessly hanging mid air.
Play went on as Azpilicueta and Antonio Rudiger swarmed around referee Chris Heath.
When the ball finally went out of play, Heath was called to the VAR monitor and a penalty was awarded.
Havertz stepped up and despite a concerted intimidation campaign by the Palmeiras, with Rudiger acting as chief protector, he kept his cool and shot home in the 117th minute.
The unfortunate Luan's evening would then come to an end with virtually the final kick of the game, when he was sent off for a professional foul on Havertz.
Football psychologist Geir Jordet explains why Chelsea's penalty trick against Palmeiras was brilliant.
'A penalty kick is a team performance! For Chelsea's decisive penalty last night, Azpilicueta acted as decoy for Palmeira's mind games, while the real penalty taker, Havertz, quietly prepared his kick in the periphery.
'Then a last-second switch. How did they do it? And why? When the penalty is secured, after VAR, Azpilicueta seeks eye contact with Havertz.
'Then he grabs the ball, as if HE is the penalty taker, while remaining in eye contact with Havertz. Azpilicueta draws plenty of attention from the Palmeiras players, while Havertz is ignored.
'Azplilicueta takes up an early position at the penalty mark, making himself a seemingly stationary and simple target for the Palmeiras players' disruption tactics.
'They even get a yellow card in the process of trying to disturb him.
'The reveal. When the referee finally has established control, the Palmeiras players have cooled off and backed away, the time is right.
'Havertz has been calmly waiting in the back, focusing on his shot, and the ball is now handed over. The switch is successfully made.
'Havertz can now place the ball on the penalty mark without disruptions, continue his focused mental preparation, and ultimately score the penalty kick that wins Chelsea the FIFA Club World Cup.
'Why did Chelsea do all this? In 2021-2022, many teams take extreme measures to disturb the penalty taker.
'The referees do what they can to prevent it, but they're typically outnumbered by the defending team who gets to do & say whatever they want to the penalty taker.
'Palmeiras has shown earlier this season that they can form an intimidating and effective crowd around the ball and the referee, after important penalties and free kicks are given against them. Chelsea obviously did their home work.
'Chelsea knows this crowding strategy intimately. When penalties are awarded against Chelsea this season, they also swarm around the penalty taker, attempting to get into his head.
'Here against Salah/Liverpool. Of course they're prepared for others using it against them.
'A counter-measure in these situations is for the penalty taker to wait outside the area & arrive late at the penalty mark - a strategy Salah now employs.
'Chelsea took it to the next level, by appointing their captain as a decoy penalty taker. Clever. Effective. Beautiful.'