Arsenal attacker Kai Havertz has now lifted the lid on the reason behind the shirt number he now wears for the Gunners and previously donned for Chelsea. As he did for Chelsea, Kai Havertz wears the No. 29 shirt for Arsenal. The Gunners paid £65 million to prise the German away from Stamford Bridge in the recent summer transfer window. This was a move that attracted plenty of negative attention at the time. Havertz was deemed the worst signing of the summer window back at the start of the season. He arrived at the Emirates Stadium clearly bereft of confidence and took some time to settle into …