SPFL chief executive Neil Doncaster has warned there is "no further room" to reschedule games after the winter break was brought forward.
The 12 Premiership clubs will take their break starting from Boxing Day to coincide with the three weeks in which they'll be allowed just 500 fans in stadiums.
It means fixtures such as Celtic vs Rangers and Hibs vs Hearts will now be played in February, with the hope that supporters will be allowed in.
But with the situation around the Omicron variant unclear, the SPFL head has warned any further rearrangements won't be possible.Doncaster told Sky Sports: "There is no further room."We've used the two available slots that exist.