It is only one win and three points, but the impact on Arsenal of Sunday's 1-0 victory over Manchester City could be profound. The Gunners had not beaten City in 15 previous Premier League meetings dating back to January 2015. They had suffered a staggering 12 consecutive defeats in that run including two last season, when they were outclassed and outmuscled as Pep Guardiola's side secured a fifth title in six seasons.
In that context, there was a cathartic element to the celebrations greeting Gabriel Martinelli's deflected 86th-minute winner: eight years of pain and suffering exorcised in a moment that felt like the shattering of a glass ceiling.