Who? The winners of the Bulgarian A Group for the past three years, Ludogorets play their home matches at the 8,000 Ludogorets Arena in Razgrad, but will switch to Sofia for the Champions League.
After beating Luxembourg’s Dudelange and Serbia's Partizan Belgrade to reach the playoff round, they astonishingly beat Steaua Bucharest on penalties after a 1-1 draw on aggregate, with defender Cosmin Moti forced to go in goal for the shootout after a red card for goalkeeper Vladislav Stoyanov.
Moti scored one penalty and saved two to send Ludogorets through, as you do.
Previous record against Liverpool: There isn’t one.
This is Ludogorets’ first season in the group stages of the Champions League proper, and although they’ve never faced an English club before, they did beat PSV Eindhoven and Lazio in last season’s Europa League, before losing 4-0 on aggregate to Valencia in the last 16.
Manager: Georgi Dermendzhiev is in his first season in the top job after three years as assistant to Stoycho Stoev, who was sacked in July.
Given his side’s heroics so far, he’s started well.
Danger Man: Moti, of course.
The Romanian defender had the whole of the continent watching in disbelief as he performed miracles against his fellow countrymen from Steaua, and if Liverpool get a penalty in either match against the Bulgarians then whoever’s taking it won’t want to see him don the gloves.
The Lowdown: Liverpool might have waited five years to get back in the Champions League, but for Ludogorets this competition will represent a glorious ending to a lifetime’s ambition.
Just last month Ludogorets were in nearby North Wales beating Welsh Premier League side Connah’s Quay Nomads 7-0 in a friendly, but now they’ll be gracing the Anfield stage with nothing to lose.
Liverpool will feel as though they should be getting six points from their group’s whipping boys, but as Moti and his teammates showed in their playoff, you really can’t rule anything out in the Champions League.