Hull City 1 Arsenal 4

Alexis Sanchez scored twice and missed a penalty as Arsenal comfortably beat 10-man Hull City in the Premier League. Sanchez put Arsenal ahead when he got a touch on Alex Iwobi’s shot, but failed from the spot after Jake Livermore handled and was sent off. Theo Walcott added a second after the break before Robert Snodgrass pulled one back for the hosts with a penalty. Sanchez stroked a third into an empty net before Granit Xhaka’s spectacular shot rounded off the scoring.

Sanchez’s first goal owed much to fortune rather than brilliance as Iwobi arrived at the back post and saw his effort deflect in off the Chile international. Livermore was shown a straight red card five minutes before half-time when he blocked Iwobi’s goal-bound effort with his hands. Sanchez took responsibility for the penalty ahead of recent regular taker Santi Cazorla only to see his low effort saved by Hull goalkeeper Eldin Jakupovic. It was a decision which also mystified Wenger who revealed it was “not planned for Sanchez to take it” and that he wants “to know what happened and for it not to happen again”. Walcott notched a second goal shortly before the hour mark when he got on the end of Iwobi’s clever flick with Hull defender Harry Maguire helping the ball into the net with his head. Snodgrass gave Hull a glimmer of hope when he converted from the spot after Petr Cech had brought down Dieumerci Mbokani, but Arsenal’s response was emphatic.

Sanchez struck after Jakupovic had blocked Walcott’s initial shot, before substitute Switzerland international Xhaka – a £35m summer signing from Borussia Monchengladbach – applied the gloss with the pick of the goals from distance. After three consecutive Premier League wins for the first time since last Christmas, Arsenal’s season now feels properly up and running. Hull made Arsenal work for this victory but the quality in Arsene Wenger’s side shone through. Even when he has an off day Sanchez can be a match-winner. These were not particularly classy strikes from the Chilean, but he got the job done. Wenger, in a season when the pressure is on him to deliver silverware, will likely feel there is plenty to build on from this performance.

Both teams have away trips in the third round of the EFL Cup during the week. Arsenal face Championship Nottingham Forest at the City Ground on Tuesday while Hull benefit from a extra day of rest before they travel to the Potteries to play Stoke. Arsenal have won six games at the KCOM Stadium in all competitions – more than any other away side. Hull have lost back-to-back home league games for the first time since May 2015. Sanchez has been involved in eight goals in his five games against Hull in all competitions (six goals, two assists). Sanchez’s penalty miss means he is the only Arsenal player to take more than one Premier League penalty and fail to score with any of them. Arsene Wenger’s side have not lost any of their past 26 Premier League games against newly promoted sides (W22 D4).