The club are coached by former Norway international Kåre Ingebrigtsen, who played 17 times for Man City between 1992 and 1994.
The squad comprises largely of Norwegian players, though they are captained by Danish international Mike Jensen.
Their most famous player, meanwhile, is another Dane — ex-Arsenal striker Nicklas Bendtner.
They are based in Trondheim, Norway and play their home matches at the Lerkendal Stadion, which has a capacity of 21,400.
They are Norway’s most successful team, having won 24 league titles, including 13 in a row between 1991 and 2004.
The team finished 1st in the 2016 season of the Norwegian league (Tippeligaen), while they currently top the 2017 edition by a point after 13 games.
They qualified for the group stages 11 times during their most successful period in the 1990s and early 2000s, reaching the quarter-finals in the 1996-97 campaign, though they have struggled to enjoy quite the same levels of success in more recent years.
The club’s sporting director will be familiar to older Liverpool fans – Stig Inge Bjørnebye made over 100 appearances for the Reds between 1992 and 2000 and also had a stint at Blackburn for three years thereafter.
They have met League of Ireland opposition in Champions League qualifiers before, beating a Stephen Kenny-managed Bohemians 5-0 on aggregate in 2003, as well as overcoming Shelbourne 4-1 on aggregate in 1999. More recently, they overcame Sligo Rovers in a 2014 Europa League qualifier 4-3 on aggregate
Levadia Tallinn (Cork City’s opponents)
The club who are based in Tallinn, Estonia, were founded as recently as 1998.
They play all their home games in the 5,000-capacity Kadriorg Stadium.
Levadia finished second in the 2016 edition of the Meistriliiga, while they are also second in the 2017 league, trailing rivals Flora by four points.
Despite their relatively recent arrival on the footballing scene, they have already won nine Estonian league titles and eight Estonian cups.
Their squad has no star names and is mostly made up of Estonians, though they have two foreign players on loan from Middlesbrough — Ghanaian William Opoku Asiedu and Brazilian João Morelli.
Their coach, 50-year-old Igor Prins, is an ex-Estonia international in his second spell in charge at the club, taking over last year, having previously managed them between 2008 and 2010.
FC Midtjylland (Derry City’s opponents)
The club are based in Herning, Denmark, and were founded in 1999.
They play their home matches in the MCH Arena, which has a capacity of 11,800.
They finished fifth in the 2016-17 edition of the Danish Superliga, before winning a European playoff.
Matthew Benham, their majority shareholder, is also the owner of Championship side Brentford.
They have won the Danish title only once — in the 2014-15 campaign.
Their recent track record in the Europa League is impressive enough — they got as far as the playoff last season, while they reached the round of 32 in 2015-16, before losing 6-3 on aggregate to Louis van Gaal’s Man United, despite a 2-1 home win in the first leg.
Notable ex-players include West Ham’s Winston Reid, highly-rated Danish international Simon Kjær and Celtic’s Erik Sviatchenko.
Their current squad includes 34-year-old Rafael van der Vaart — the former Real Madrid and Tottenham star who has earned over 100 caps for the Netherlands.
Stjarnan (Shamrock Rovers’ opponents)
The club are based in Garðabær, Iceland and play their home games in the Samsungvöllur stadium, which has a capacity of 1,000.
They were founded in 1960.
They finished second in the 2016 Úrvalsdeild (Icelandic league) and are currently six points off the lead in third in the current edition with seven games played.
In the 2014-15 campaign, they missed out on the Europa League group stages in a playoff, overcoming Motherwell and Lech Poznan, before being thrashed 9-0 on aggregate against Inter Milan.
Their squad is made up entirely of Icelandic players.
They have only ever won the league title once, in 2014.
They came up against Celtic in last year’s Champions League qualifiers, but were well beaten 6-1 on aggregate.
The club are also renowned for their association with four other sports — handball, basketball, volleyball and gymnastics.
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The team who gave Man United a scare and all you need to know about the Irish sides' European opponents
Rosenborg (Dundalk’s opponents)
Levadia Tallinn (Cork City’s opponents)
FC Midtjylland (Derry City’s opponents)
Stjarnan (Shamrock Rovers’ opponents)
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