Kai Havertz has become one of Arsenal’s best players. The Germany international came under a lot of criticism early on in his debut season. Not many people understood why Mikel Arteta spent so much money to sign him. Havertz’s three-year spell at Chelsea was underwhelming, even though he scored the winner in the Champions League final while he was a Blue. That made many people think he would be a flop at Arsenal, but Havertz has been unbelievable since the turn of the year in the famous red and white. Bukayo Saka and Arsenal players had the same thoughts about Kai Havertz before he joinedArsen…