Graeme Souness has now given a firm verdict on all potential comparisons between Mikel Arteta’s first two seasons at Arsenal and Erik ten Hag’s at Manchester United. The Gunners head to Old Trafford this Sunday in a crucial game for their Premier League title hopes. Arsenal just have a trip to Manchester United and Everton’s visit to Emirates Stadium left to play. Arteta must also claim wins over the Red Devils and Toffees to stand any chance. Arteta made Arsenal genuine title challengers for the first time since the 2015/16 term last season. Yet a run of three wins over their final nine games…