Alan Pardew says he would like to keep hold of Yohan Cabaye as well as add to his Newcastle squad before the transfer window shuts.
The Magpies manager was fuming after Arsenal's reported £10million offer for France midfielder Cabaye was made public on the eve of United's 4-0 Premier League defeat at Manchester City on Monday night.
Newcastle rejected the approach out of hand and Pardew would prefer to make at least one addition before the September 2 cut-off.
Pardew told the Newcastle Chronicle: "If it doesn't (happen), like anything in life, we're going to have to get on with it with what we've got.
"We've still got a very good team with Loic Remy on top of it. We lost Demba (Ba) and got the other guys in in January. I still think one more would be the perfect scenario."
He added that new blood could be the perfect boost after the opening-day mauling by City.
"I think a player does that to the group. A big player coming in boosts the group as well as the fans," he added.
"I'm not going to say something that I don't think is true and say 'oh, it's not affecting them'. I think they'd like to see another striker come in the door.
"That's something that hopefully will be done before the window shuts."