Celtic's league meeting with St Mirren has been brought forward by six weeks to be played on the date of the suspended Scottish Cup.
The sides were due to lock horns in the Scottish Premiership on March 2, but will now do so on January 30 with a 3pm kick off as SPFL chiefs look to take advantage of the competition's postponement to ease a cluttered fixture calendar.
Celtic have three games in hand on leaders Rangers following a host of postponements owing to a variety of coronavirus-related issues earlier in the season.
Monday's game against Hibernian went ahead despite 13 players plus manager Neil Lennon and assistant John Kennedy being forced into self-isolation after Christopher Jullien's positive COVID-19 test on their return from the controversial trip to Dubai.
League bosses are already finding current fixture rearrangement planning a challenge, with a tight fixture calendar limiting the number of available days for games to be played.
All football outside the top two tiers of the Scottish game was suspended for three weeks on Monday amid the fallout from The Hoops' ill-advised overseas trip for warm weather training at the start of the month.
That included the Scottish Cup, with only the oft-abandoned Camelon Juniors v Brora Rangers first round tie - eventually won by the Highland League side - surviving the cut prior to the game going on hiatus.
It means the third round will not take place on January 30 as planned, though a new date for Celtic's meeting with Arbroath or Falkirk is yet to be confirmed.
Nine games in total across the Premiership and Championship have been brought forward to that weekend.
