Manchester United manager Jose Mourinho admits the transfer market has been a tough nut to crack and that he is keen to bring in more players.
Mourinho has thus far only acquired the services of striker Romelu Lukaku from Everton, and defender Victor Lindelof from Benfica.
The Red Devils are reportedly in the hunt for Inter Milan's Ivan Perisic, while Nemanja Matic and Eric Dier have been linked with moves to Old Trafford, but none of them have been signed as yet.
"We always want more," Mourinho told ESPN. "We always feel there is room to improve, and I cannot say that I am happy with our transfer window.
"What I can also say is that it is a difficult transfer window and I don't blame anyone – it is just a reality of things. The market is going in such a direction that many players are difficult to get, not to say impossible.
"Every club is powerful and they don't want to sell or their demands are really high, so the market is difficult.
"The market ends on Aug. 31, so there is plenty of time, but obviously, the objective for me as manager is always to have the players as soon as possible and try to coach them in the team and develop the team with them and Lukaku and Lindelof arrived to train in time for day one."