If Arsenal signing Kai Havertz from Chelsea wasn’t dramatic enough last summer, Mikel Arteta arguably went one better by signing Raheem Sterling on deadline day. Sterling arrives at the Emirates Stadium with a big point to prove, hoping that he can also enjoy an Arsenal renaissance in similar fashion to Havertz. The England international, who now hasn’t been called up since December 2022, endured a torrid time at Chelsea, even if he started well initially. Sterling linked up well with Havertz at Stamford Bridge, before his role and form tailed off. And under Enzo Maresca, it was clear that Ste…