Eddie Nketiah, Joe Willock and Reiss Nelson impressed in their Europa League victory over Dundalk on Thursday evening, cruising to a 3-0 victory with Nketiah and Willock both getting on the scoresheet.
The Gunners don’t have long to rest before Sunday’s clash against Ole Gunnar Solskjaer’s United, but Arteta has insisted that those who featured could start again at Old Trafford.
“I’m really pleased with the way we went about the game,” he said.
“Our attitude from the beginning was spot on, we attacked and created a lot of situations inside the box.
“We gave a chance to a lot of players who haven’t played many minutes this season and it is something really positive because they showed they are well-prepared, and they are ready when we need them.
“They are always in the frame to play. It is not if we lose or win, it is what they bring to the team.
“How they train, what they are showing. Results at the end are consequences of many things, but individually how they do things is what determines whether they have the opportunity to play or not.”
Willock’s performance in particular drew praise from pundits, with Owen Hargreaves telling BT Sport on Thursday: “He has a good feel for the game. He’s very brave.
“He could be really good just depending on who is his partner – who is he with. I think there is a really good player in there. It is just about getting that right fit. At his age, he needs to play games.
“I think right now, at Arsenal, he is not going to get a ton of games.”
Gunners hero Martin Keown then added: “When I watched him last season, certainly late in the season, he was coming on late in games and he wasn’t really sure of where to be on the pitch.
“Arteta, I know is a great tactician, but I want to see more given to him, I want to work with Willock and see what we can really get with him.
“He needs to know when to release the ball, when to run with the ball and make the right decisions. That was an improvement today, but when Arsenal are out of possession, where is he going to be?
“He needs to learn that. He’s used to playing with a three when Arsenal play with a deep-lying midfielder, it’s going to be a two now – it’s up for grabs.”