Journalist Mark Ogden has now spoken out about how one Arsenal star has managed to silence his doubters at the Emirates Stadium this season. Kai Havertz was a divisive signing upon his arrival at Arsenal. Many Arsenal fans had their doubts about Havertz when the club opted to shell out £65 million to prise him away from Chelsea in the recent summer transfer window. In his time at Stamford Bridge, the German failed to ever really shine on a consistent basis, and he was clearly very short on confidence when he first came to Arsenal. Havertz came in for plenty of criticism in his early days at Ar…