Unai Emery insists Arsenal are working to bring in "three or four" players before the start of the new season.

So far this summer the Gunners have only signed 18-year-old forward Gabriel Martinelli despite being linked with a host of names.

Arsenal have a smaller budget than the majority of their closest Premier League rivals but have still continued to show reported interest in some key targets.

Crystal Palace winger Wilfried Zaha, Kieran Tierney of Celtic and young Saint-Etienne defender William Saliba have all attracted attention from the Emirates Stadium hierarchy this summer.

But, with only Burnley, Newcastle, Crystal Palace and Norwich forking out less on new recruits so far, the lack of investment is one of the issues highlighted by an alliance of Arsenal supporters' groups in recent days.

However, speaking ahead of Arsenal's opening International Champions Cup clash with Bayern Munich in Los Angeles, Emery claims there will be more transfer activity in the coming days as he looks to build a squad to take the club back into the Champions League.

"We are working, the club is working with the possibility to sign some new players to help us," he said.

"We are doing a lot of meetings with the club, with (technical director) Edu, with Raul (Sanllehi, head of football) and also with Josh and Stan Kroenke on Monday in Denver.

"We have a clear idea to sign players to help us with quality and in the positions we need.

"We are taking with the patience and with the 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 and we also need to take the best player in some positions.

"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.