Arsenal boss Mikel Arteta says their summer shopping is far from over.
So far, the Spanish coach has added to his squad with the free transfer of Willian from Chelsea and the £27m acquisition of defender Gabriel Magalhaes from Lille.
“We are looking at different options. I would say we are active in the market for players in and out,” he said, in his pre-match press conference before their Premier League opener at Fulham.
“At the moment the squad balance is not the ideal we want to achieve so there is still some work to do.
“We have to bear in mind the complication with this transfer market and the complexity and the timing, because you can see that clubs are behaving in many different ways and it is a little bit uncertain how this will work in the next few weeks.
“It is going to be very difficult to achieve what we want in one window or two windows.
“It is a process, it has to evolve and most importantly it has to be a sustainable model that we can consistently feed in using our academy players.”