A 'furious' half-time rant from Fernandes and Martinez was so loud that it could be heard from the corridors

Bruno Fernandes and Lisandro Martinez reportedly ranted so loud at half-time of the Manchester derby that it could be heard from the corridors.

Manchester United trailed 4-0 at the break on Sunday as Manchester City ran riot in the opening 45 minutes.

Erling Haaland and Phil Foden scored two goals apiece in the first-half of the Etihad showdown.

The visitors were well off the pace and couldn't contain the Man City stars.

According to Neil Custis, Fernandes and Martinez vented their anger and made their feelings known to the rest of the team.

What's more, Fernandes and Martinez's furious half-time rant was so loud that it could be heard from the corridors.

It appeared to have some effect with Man United replying with three second-half goals.

Antony pulled one back before Haaland and Foden completed their hat-tricks.

Anthony Martial bagged a late brace to make it 6-3.

Speaking after the crushing defeat, the Portuguese midfielder touched on the spirited second-half display.

"I think the attitude and the belief from the beginning was not the best and I think it was that that caused us many problems and made us concede early goals," he said.

"After we have to run back the result and obviously I think the second half was much better.

"We keep control more, we control more the game. Whenever we have the ball we are more brave.

"Obviously we’re down on the result, so we had to take some risks - and obviously when you take that risk you score straight away, you try to go a little bit more (attacking) and you concede more goals.

"Against teams like City, you can’t give that much space to them.

"Obviously we are really disappointed but now it’s time to focus on the next game and understand that we have to get back in the performances that we did before - in the belief and everything, in the togetherness principle - and understand that this cannot get us down."

Man United resume their Premier League campaign on Sunday when they travel to Everton.