Ruben Amorim urged Manchester United to improve at set-pieces and said they "can't cry" about referees not intervening with players surrounding the goalkeeper in the box.

Wolves opened the scoring against United in the second half at Molineux, scoring directly from a Matheus Cunha corner that Andre Onana was unable to stop looping into the net.

United conceded from two set-pieces against Arsenal and conceded from a single set-piece against each of Nottingham Forest, Manchester City, Tottenham Hotspur and Bournemouth.

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Amorim's side have conceded six goals from set-pieces in their last seven matches and two of those have been scored directly from corners, which saw Altay Bayindir protest to the referee for interference against Tottenham and Andre Onana doing the same against Wolves.

"After a defeat, I don't want to talk about that," said Amorim about a potential foul by Wolves on Onana. "But you can see every corner nowadays is an opportunity, so sometimes you forget the small guy and the talented guys, and you have 11 guys for corners or free-kicks.

"You can do everything inside the box and that is the rules. So we can't cry about it, we have to do the same. We have to focus on doing the same to the opponent and that is my goal at the moment."

Amorim was asked if he needed 'bigger players' and added: "No, what I'm saying is if set-pieces have become so important, you can do everything, so we have to learn it and do the same thing.

"Even with the small guys. We just have to copy and do the same thing, not change try to change the rules, just use the rules to also score from a set-piece."

United play Newcastle next and Amorim admitted they will attempt to make the home crowd nervous. "We have to fight against everything because our supporters are always there but they are tired of this moment," he said about the Magpies' upcoming visit to Old Trafford.

"We have to expect that any player from Newcastle near our box is going to make the stadium nervous and our players have to cope with that, so they have a very strong team, very fast with a lot of pace and a lot of time working with the same coach. We want to be competitive and win the game."

Amorim recently praised Harry Maguire for his ability to defend set-pieces, however, he was non-committal about the possibility of making him captain for the Newcastle game.

"He will have to wait until the game," said Amorim. "He works really well, he's focussed on the job and not what people said. He has no excuses, even if he had some tough moments and I think in that department he's an example. He's there to play and help the team, and he's trying to do that."