Press Association Sport understands Sunderland goalkeeper Simon Mignolet will attend the Reds' Melwood training ground on Tuesday for a medical before finalising personal terms on an £11million-plus transfer agreed on Friday.
The Belgium international will be manager Brendan Rodgers' fourth signing before the end of June after previous deals for Manchester City defender Kolo Toure, Sevilla midfielder Luis Alberto and Celta Vigo's Iago Aspas.
More are set to follow, with Liverpool well down the line in negotiations for Sporting Lisbon defender Tiago Ilori while they are trying to hammer out a complicated deal for £20million-rated Shakhtar Donetsk midfielder Henrik Mkhitaryan.
But the fact a bulk of the business has already been done - not taking into account striker Luis Suarez who is publicly courting a move to Real Madrid - will be advantageous to Rodgers according to Ayre.
"It's always important. It's not always possible but it's always important," said the managing director.
"Particularly from the playing perspective, the manager and the coaches and all of the staff want to know that they've got the squad together, particularly ahead of pre-season.
"We've worked tirelessly, a lot of people behind the scenes worked ahead of the transfer window to identify those players that interest us.
"Then the hard work starts, negotiating and bringing these deals together."
- Sports & Recreation
- Brendan Rodgers
- Simon Mignolet
- Iago Aspas