Arsenal earned their first victory in this season’s Champions League on Tuesday night, beating French giants PSG 2-0. The Parisian side arrived at the Emirates Stadium having not lost a match all season, but first-half goals from Kai Havertz and Bukayo Saka saw the Gunners run out comfortable winners. After Arsenal drew their opening Champions League game with Atalanta, the victory was even more important for Mikel Arteta’s side to show a statement of intent on the European stage. An unbeaten start to the Premier League campaign has once again highlighted their domestic credentials. Still, Art…