The Premier League is unlikely to allow Liverpool to move any top-flight games to accommodate their Carabao Cup quarter-final at Aston Villa.
The last-eight ties are due to take place in the week commencing 16 December, when the Anfield side are in Qatar for the Club World Cup.
The Reds’ Premier League match at West Ham United has already been postponed because of the Fifa tournament.
The club and the EFL are in talks over an alternative date for the Villa game.
Liverpool ‘not able to play’ quarter-final unless fixtures change
There appear to be no potential slots in December, a month when Liverpool already have eight fixtures scheduled – five in the Premier League, their final Champions League group match and two Club World Cup games.
There is a midweek window after the FA Cup third round on the first weekend in January – but that would mean playing the Villa tie when the first legs of the EFL Cup semi-finals are due to take place.
Another midweek slot is potentially available in the week commencing 13 January, before the second legs take place in the week beginning 27 January.
The EFL Cup final is on 1 March.
There have also been reports about Liverpool playing the Villa tie on 17/18 December and the Club World Cup game on 18 December by fielding two different teams in the competitions.
Liverpool’s fixture pile-up (Premier League unless stated)
4 December Everton (h)
7 December Bournemouth (a)
10 December Red Bull Salzburg (a) Champions League
14 December Watford (h)
16 December Week of EFL Cup quarter-finals
18 December TBC (Qatar) Club World Cup
21 December TBC (Qatar) Club World Cup
26 December Leicester City (a)
29 December Wolverhampton Wanderers (h)
2 January Sheffield United (h)
4 & 5 January FA Cup third round
6 January Week of EFL Cup semi-final first legs
11 January Tottenham Hotspur (a)
19 January Manchester United (h)
23 January Wolverhampton Wanderers (a)
27 January Week of EFL Cup semi-final second legs
1 February Southampton (h)