Shkodran Mustafi says Arsenal took their time adjusting to a back three (AP Photo)Shkodran Mustafi admits Unai Emery’s decision to play with a back three hampered Arsenal’s performance in their 1-1 draw with Vitoria on Wednesday.The German defender was responsible for Arsenal’s only shot on target as he put the Gunners in front with a header from Nicolas Pepe’s free-kick in the 80th minute.But Arsenal were unable to hold out for the victory as Bruno Duarte equalised for Vitoria in injury time, while the Portuguese club also came close to snatching a last-gasp winner.Emery opted to play Mustafi alongside Sokratis Papastathopoulos and Rob Holding in a three-man defence.AdvertisementAdvertisementADVERTISEMENTBut Mustafi feels the decision meant that Arsenal’s players struggled to find ‘rhythm’ in the opening 45 minutes. Shkodran Mustafi blames Unai Emery’s tactics for Arsenal’s performance against Vitoria Bruno Duarte scored an injury-time equaliser for Vitoria (EPA)‘We need to stay calm. Everyone wants to show and give everything, sometimes when you are over-motivated it’s difficult to deal with that.‘But I think at the end of the day we need to stay calm, play our football, believe in ourselves and then in the final third try and do it a little bit more intelligently with more accuracy with our last pass.’The draw leaves Arsenal four points clear at the top of Group F with two matches remaining.More: Arsenal FCArsenal flop Denis Suarez delivers verdict on Thomas Partey and Lucas Torreira movesThomas Partey debut? Ian Wright picks his Arsenal starting XI vs Manchester CityArsene Wenger explains why Mikel Arteta is ‘lucky’ to be managing Arsenal Mustafi scored for Arsenal with 10 minutes remaining (Getty Images)When asked about being unable to see out the victory against Vitoria, Mustafi told BT Sport: ‘Unfortunately it’s not that easy.‘I would love to finish in the 90th minute but when you score a goal and you still have time left to play against a team like today they throw everything up front.‘Sometimes it’s not organised any more, they throw a lot of bodies in the box, they keep crossing, I think we could have done better but in the end we have to accept and take the point with us.“We could have dealt with it [Vitoria’s goal] a little bit earlier, rather than letting them put the cross in. In the end you have to accept it and move forward, take the positive things from the game. Comment Advertisement Metro Sport ReporterWednesday 6 Nov 2019 6:29 pmShare this article via facebookShare this article via twitterShare this article via messengerShare this with Share this article via emailShare this article via flipboardCopy link112Shares Advertisement Unai Emery’s players registered just one shot on target against Vitoria (EPA)More: FootballRio Ferdinand urges Ole Gunnar Solskjaer to drop Manchester United starChelsea defender Fikayo Tomori reveals why he made U-turn over transfer deadline day moveMikel Arteta rates Thomas Partey’s chances of making his Arsenal debut vs Man City‘They are a good side. They are in the Europa League for a reason, they have quality and are quite compact.‘We played with a back three, a system for a long time we didn’t play. So we needed our time a little bit to get the rhythm in.‘In the first half we didn’t do as we wanted. I think we came out better in the second half, had better rhythm, better passing.