The Reds progressed to the fourth round through a professional win at Aston Villa on Friday night, against a Villa side with an average age of just 18 due to a COVID-19 outbreak among the first team.
A victory is a victory, though, in the FA Cup, and the result secured a place in the draw for the fourth round, which was held on Monday night.
Liverpool will therefore visit Old Trafford in the next stage of the tournament, with the ties to be played around the weekend of January 22/23/24/25.
This season, a place in the fourth round means the Reds will play seven times this month, following eight games in December, and if they beat Man United they will also fulfil seven fixtures in February, with the fifth round to be played on Feb 9/10.
The Reds have reached the fourth round of the FA Cup in five of Klopp’s six seasons on Merseyside so far, but only once have they made it beyond this stage, that being last year.
Liverpool last won the FA Cup in 2006, but reached the final in 2012 and the semi-finals in 2015.