Arteta identifies key Arsenal problem after 2-1 European win against Slavia Prague

Mikel Arteta has admitted Arsenal have plenty to learn after turning what looked like a comfortable Champions League victory over Slavia Prague into a nervy 2-1 win. The Gunners were excellent during the opening 45 minutes, with Noni Madueke breaking the deadlock after nine minutes before Viktor Gyökeres doubled their advantage shortly before half-time. Arsenal appeared firmly in control, but their level dropped dramatically after the interval as Slavia pushed for a way back into the contest.