Arsenal boss Unai Emery admits he expects "three to four" more signings to arrive this summer.
Emery said: “I can say to our supporters we are going to make a very good team with the players there now and three or four players who can help us in a few days.
“Our target is to get three or four players who can really improve our squad now. We are being very, very demanding and first speaking about the possibility to sign very expensive players.
“The first player in our list is our first target, if we cannot achieve that the second. We are thinking every time they're going to improve our squad."
When quizzed on reports in Spain about Arsenal's loan move for Ceballos, Emery added: “I don't want to speak about the names. Dani Ceballos is a very good player."