Their recent European record underlines the task ahead of Shamrock Rovers tonight and next week in Tallaght.
The only time in the last eight seasons that Ludogorets Razgrad failed to make the group stages of either the Champions or Europa League was in 2015/16, when their continental adventure was brought to an abrupt end by little-known Moldovan outfit Milsami Orhei.
There have been a couple of eye-catching results - a 2-1 win over Malmo last year, a pair of draws with Olympiacos and Midtjylland, a 2-2 draw away to Paris St Germain and a 5-1 win at home to CSKA Moscow.
