What a performance from Aston Villa at Arsenal! Even with so many players out injured, including Douglas Luiz being suspended and Boubacar Kamara out for the season. Aston Villa still managed to secure a 2-0 win over Arsenal at the Emirates to boost their top-four hopes and dent the London club’s Premier League title chances. Make no bones about it, this was deserved and it was one of the most impressive displays under Unai Emery. In fact, you could argue that it was the best performance under his stewardship, even better than that win over Manchester City at Villa Park. Arsenal had a full-fit…