Liverpool assistant coach Pep Lijnders is the latest member of staff isolating because of coronavirus as the club seeks to postpone Thursday's Carabao Cup semi-final first leg at Arsenal.
Lijnders' suspected positive test is in addition to "a number of" suspected cases among players and staff recorded on Tuesday that saw training cancelled.
The decision on whether the game is postponed is "still pending".
Lijnders took charge for Sunday's Premier League draw at Chelsea, with manager Jurgen Klopp isolating.
Players Alisson, Joel Matip and Roberto Firmino missed that game too and three other staff members tested positive.