Jurgen Klopp's Liverpool are still on for what would be a historic quadruple this season, but may have to face Manchester City four times in a row to achieve it.
The Reds' league meeting away at the Etihad falls on either April 9 or 10, a date wedged between the two-legs of the Champions League quarter-final.
Should both sides make it to the last eight of Europe's most elite club competition, there is a chance they'll draw each other and contest the first leg less than 5 days before they meet in the league.
The second leg is scheduled for the middle of the week after their league contest, but the saga may not even end there.
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After both seamlessly progressed to the fifth round of the FA Cup and secured undeniably favourable draws, their could be a fourth fixture in a row were they to both reach the semi-final of football's oldest cup.
The final four teams in the FA Cup participate in their respective semi-finals on April 16/17, which presents the chance for both to enjoy a fourth meeting in as many games.
The two sides have met once so far this season in what turned out to be a thrilling 2-2 draw at Anfield.
The hosts took the lead twice thanks to goals from Sadio Mane and Mohamed Salah, only to be pegged back both times courtesy of strikes from Phil Foden and Kevin De Bruyne.
City's recent slip-up at home to Tottenham has given Reds fans hope that the title race is no longer a forgone conclusion like many had tipped it to be.
Including their trip to the Etihad, Liverpool have five league contests in the month of April this year.
Factoring in another two for the Champions League and one more for the FA Cup and Klopp's troops may be called into action eight times in April along.
The Liverpool manager has often been in vocal in his opposition for the burden placed on players in the English game due to the amount of fixtures they are forced to play.
His complaints over the festive fixture list sparked debate before the turn of the calendar year as he called on the Carabao Cup to make sure the semi-final stage is one leg rather than two.
The German also described the English tradition of Boxing Day fixtures followed by another game on December 28 as "inhumane".
Last season, the Liverpool boss claimed: "After [a] Wednesday, Saturday 12:30 is really, really dangerous for the players."
