Emery, who succeeded Arsene Wenger, has already made five signings as Arsenal boss this summer.
In doing so, he has spent the majority of the £70million transfer budget that was afforded to him.
While the Gunners have strengthened in certain areas, particularly in midfield, they may be a couple of players light of a sustained title challenge.
But Emery reckons more players are likely to leave rather than join over the next couple of days.
He said: “My focus is on the first match and preparing, and not for the window and the possibility to sign another player.
“Maybe we need some players to leave because we have lots in the squad, but at the moment, my one focus is on our work.”
Danny Welbeck and Shkhodran Mustafi have been earmarked as potential players that could exit in the coming days.
Recent reports have suggested that the Gunners could launch a bid for Croatia centre-back Domagoj Vida, but a move would only be given the green light on the proviso that one of the aforementioned stars left north London.
Meanwhile, Nacho Monreal, who picked up a knock during the World Cup faces a race against time to be ready for the season-opener against Manchester City next week (4pm).
Discussing Monreal’s injury, Emery added: “He arrived with one, not big injury. His knee has a little problem.
“He is training every day, but not with the squad. He is doing the work alone with the physio and running.
“We think maybe he can train with the squad on Tuesday, he can start with the team.
“We don’t want the injuries.
“We have players, one is Nacho but he arrived later with the World Cup and also with a small injury.
“I think it is difficult [for him] to arrive for the match against Manchester City. For that we are trying Ainsley [Maitland-Niles], he played in that position.”
The Premier League transfer window closes this coming Thursday (5pm).
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