Steve Nicol believes Man United should have beaten Arsenal after Mikel Arteta's team came away from Old Trafford with a crucial 1-0 win. (2:02)Open Extended ReactionsMANCHESTER, England -- Altay Bayindir's 13th-minute mistake gifted Riccardo Calafiori the only goal as Arsenal beat Manchester United 1-0 at Old Trafford on Sunday. -- Rob DawsonGyökeres has room for improvementThere was an understandable focus on Gyökeres at Old Trafford after his €73 million move from Sporting CP. United improved but not enoughUnited lost again at Old Trafford under Amorim, but this was a lot different from some of those horrific defeats last season. It looks very much like Højlund's time at Old Trafford is up.