Arsenal hit an Emirates Stadium landmark in the first half of their Premier League clash against Newcastle United on Saturday night. Arsenal were utterly dominant against Newcastle United in the first half in north London. After an intense, attacking start from the Gunners, the deadlock was broken in the 18th minute as Gabriel Magalhaes met a Bukayo Saka corner with his head. Lorius Karius was able to claw this initial effort from the Brazilian defender out, but the ball was then deflected over the Newcastle goal-line by Sven Botman. Mikel Arteta’s side were fully deserving of this lead, even …