City's fixture with MK Dons on Boxing Day is expected to go ahead as scheduled after the start of week Covid-19 testing confirmed both clubs have enough players to fulfil the game.
The Imps have enhanced protocols around the Soper of Elite Performance Centre to minimise the risk of players catching or spreading Covid-19, with no positive tests returned on Monday.
Under the latest EFL protocols both clubs are required to return further negative tests before the game.
The Sky Bet League One schedule is continuing as normal over the festive period, with City also heading to Rotherham United on 29 December and Ipswich Town on New Year's Day.
EFL chief executive Trevor Birch said: “Throughout the pandemic our two priorities have been ensuring the welfare of those involved in EFL competitions and ensuring the fixture schedule can continue where it is safe to do so.
“We will continue to work with clubs, authorities and other agencies to monitor the Covid-19 case rate and be prepared to respond accordingly, yet for now the view remains that we can continue to deliver games safely where clubs have sufficient healthy personnel in place, on and off the pitch.
“With club mitigation measures, the mass adoption of booster jabs and Covid certification now required for larger crowds, we are sure many fans will continue to feel confident in attending matches over the Christmas period and we look forward to welcoming them.”