Arsenal manager Unai Emery is hopeful the team will sign four new world-class players, before the start of the next season.
Emery, who spoke ahead of their match against Bayern Munich on Wednesday, however, insisted they will have to be patient, as the transfer business has become 'complicated'.
"We are being patient and calm because we really want to sign players who can help us with a big performance, and also because we think in the team we have very good players and young players. We also need to take the best player in some positions," he said.
"Really, I can say to our supporters that we are going to have a very good team with the players that are there now and also with three or four players who can help us in a few days," he added.
Emery and company have been frustrated in recent weeks in the transfer market, having failed to make a single signing so far.
The club has had three bids for Celtic youngster Kieran Tierney rejected, but they remain optimistic of concluding the deal.
They are also said to be close to securing the signatures of William Saliba from St. Etienne, while reports from Brazil indicate the club has agreed to sign Copa America star Everton Soares.
Arsenal finished fifth in the English Premier League season and capped off a frustrating campaign with a loss to Chelsea in the Europa League final.