Tottenham boss Nuno admits he needs more players.
Spurs open their season later today hosting Premier League title holders Manchester City.
Bryan Gil, Pierluigi Collini and Cristian Romero have already joined Tottenham this summer.
But Nuno insists: "The squad needs balance. We have a very talented squad but we need more balance. We know that, everyone knows that.
"We will need to be very careful to ensure that the right player comes in that case.
"We need players who make us better and it is always difficult to improve something that is already good."