Ruben Amorim got a taste of how tough it can be to be Man United head coach in the Premier League clash against Arsenal.

The gaffer set his side up to be defensively pretty solid, only to see them undone by two goals from corners in the second half.

That’s the line-up of Gunners players who rush in from behind the back post every time they win a corner, pack the opposition six-yard box – and frequently score.

After William Saliba’s goal, the cameras found Amorim looking completely dejected in the dugout.

He had his arms on his hands, looking agitated and worried after seeing the game basically gone out of his side’s reach.

Ruben Amorim suffered his first defeat as Manchester United boss

Amorim’s side barely had a shot on goal until a David Raya wonder save denied Matthijs De Ligt midway through the second half.

But the corner count of 13-0 told its own story. You simply cannot afford to afford Arsenal so many set-piece chances when they are the undoubted masters of that art.