Liverpool manager Jurgen Klopp insists he is remaining patient in an increasingly difficult transfer market as the club have done a lot of work behind the scenes.
Liverpool have signed Roma winger Mohamed Salah for £34m and 19-year-old Chelsea striker Dominic Solanke for a fee to be decided by a tribunal.
However, the club were forced to withdraw their interest in Virgil van Dijk and apologise to Southampton after they complained about an alleged tapping-up offence, although a Premier League investigation has not discovered any wrongdoing.
Liverpool are still being linked with RB Leipzig's £70m rated midfielder Naby Keita but Jurgen Klopp says those type of deals take time.
"Yes, it will be a difficult one, maybe it's getting more and more difficult, especially in England," he told liverpoolfc.com when asked about the transfer window.
"But we have made a lot of good things so far. If you cannot see it so far, you can imagine we have done a lot of things behind the scenes.
"Sometimes you need to be patient and that's what we are in at the moment - to wait for the right moment and then we will see what happens."