By Andy Dunn To be brutally honest, it would have taken a monumental effort NOT to beat this current Manchester United team. To be brutally honest, Arsenal keeper David Raya was more worried about a lightning strike than a United strike. And to be brutally honest, it was one of Arsenal’s ugliest displays of the season. But there was serious pressure on them in a game that most saw as a formality. To a large extent, this was not Arsenal against United, this was Arsenal against themselves, against their own insecurities, against the pressure. And they passed the test, simple as that. There are n…