By Jonathan Wilson Sunday’s 3–2 victory proved that the Gunners have the resilience—and talent—to be a contender in the race for a Premier League trophy. Perhaps this Arsenal really is Manchester City’s most serious challenger for the Premier League title. It returned to the top of the table, a point clear of the champion, with a 3–2 win over Liverpool, but what felt significant was less the result or the performance than the fortitude it showed to keep going in a game in which it twice let leads slip. For Liverpool, meanwhile, there was more frustration and more disappointment. It now trails …