West Ham vs Arsenal LIVE: Result and reaction as Gunners record biggest-ever Premier League away win

56 mins: Phillips has had a tough start to life at West Ham but perhaps this second half, with basically nothing to play for, could allow him the opportunity to find his feet.

The Englishman has been getting on the ball plenty at the base of midfield since coming on.

52 mins: A couple of half chances for West Ham as Kudus and Johnson see their long-range efforts blocked by the Arsenal defence.

50 mins: Havertz lines up a shot from range but dags it just wide of the left post. West Ham have begun the second half in much the same fashion that they ended the first - they look lost at sea.

47 mins: Arsenal right back on top as Trossard has a great chance to pile more misery on the home fans. He gets his finish all wrong, though, and his effort goes well over the bar.

46 mins: A double change at the break for the home side as Phillips and Mavropanos come on for Alvarez and Zouma. We’re back underway here for the second half.

Here are all four Arsenal goals:

Goals, goals, and more goals.

And, breathe...

A simply breathtaking first-half from Arsenal who have raced into a four-goal lead at the break. Saliba nodded the visitors in front but Arteta’s side then found three further goals in seven minutes to surely put the game beyond doubt.

Saka converted from the spot before Gabriel’s header and Trossard’s curling finish have Arsenal totally in control at the break.

The boos rng around the London Stadium from those West Ham fans still in the ground - what on earth does David Moyes say to his team at the break?

45+5 mins: The cameras have cut to outside the London Stadium and, as predicted, hundreds of West Ham fans are heading for the train station. They’ve seen enough.