Italian Prime Minister Giuseppe Conte said he needs "more guarantees" before the green light can finally be given for the resumption of Serie A after a two-month lockdown due to the coronavirus.
Clubs have already suggested June 13 as a date for the championship to restart while group training will get underway on Monday.
However, there are splits over how to proceed. "Before starting the season, we need a few more guarantees and, speaking to Minister for Sport Vincenzo Spadafora, we don't have those at this moment," Conte told a televised news conference on Saturday.
"I hope they can be achieved as soon as possible."