The impact of Arsenal’s defeat to Aston Villa on Sunday afternoon means Manchester City look nailed on to win the Premier League with six left to play – with Arsenal far from their best against Aston Villa. Unai Emery reminded Arsenal fans that he was not the problem for his difficult time in charge when he replaced Arsene Wenger, by proving once again he is a top-level gaffer. Tactically, Villa were sensational. They repelled Arsenal at The Emirates, despite having played two days after Arsenal in the Conference League. While Emi Martinez stopped Leandro Trossard, Villa arguably deserved thei…