Vaterpolski klub Jug is a professional water polo club based in Dubrovnik, Croatia. The club was established in 1923 as part of sports society "JUG". As of the 2021–22 season, VK Jug competes in the Croatian League, Regional League A1 and LEN Champions League.
The LEN Euro Cup is the second-tier European water polo club competition run by the Ligue Européenne de Natation for those clubs who did not qualify for the LEN Champions League. The cup was inaugurated in 1992.
Andrija Prlainović is a Serbian professional water polo player widely regarded as one of the greatest players ever. He was a member of the Serbia men's national water polo teams that won bronze medals at the 2008 and 2012 Olympics and gold medals in 2016 and 2020. He also held the world title in 2009 and 2015 and the European title in 2006, 2012, 2014, 2016 and 2018. In 2011, he won the LEN Euroleague with VK Partizan and in 2013 with Red Star Belgrade, where he was one of the best scorers.
Dénes Andor Varga is a Hungarian professional water polo player, currently playing for Ferencváros.
The LEN Champions League is the top-tier European professional water polo club competition with teams from up to 18 countries. It is organized by the Ligue Européenne de Natation.
The LEN Women's Champions League, formerly known as LEN European Cup, LEN Champions Cup and LEN Euroleague Women, is the premier competition for women's water polo clubs of Europe and takes place every year. It is organized by the Ligue Européenne de Natation (LEN) and was created in 1987 as LEN European Cup.
Felipe Perrone Rocha is a water polo player. Born in Brazil, he competed for Spain from 2003 until 2013, including in the 2008 Summer Olympics and 2012 Summer Olympics. Afterwards he competed for his birth country in the 2016 Summer Olympics, as Brazil earned its first qualifying spot in 32 years as hosts. He helped Spanish water polo club CN Atlètic-Barceloneta win the LEN Champions League in 2013–14 season. His brother Ricardo Perrone also competed for Spain in water polo.
Sandro Sukno is a Croatian former professional water polo player. At the 2012 Summer Olympics, he competed for the Croatia national team in the men's event winning the gold medal. He also won a silver medal at the 2016 Summer Olympics. He last played for VK Jug. He currently works as an assistant coach of the senior men's Croatia national team.
Paulo Obradović is a Croatian water polo player. At the 2012 Summer Olympics, he competed for the Croatia men's national water polo team in the men's event, where they won the gold medal. He is 6 ft 3 inches tall. At club level, he played for Greek powerhouse Olympiacos, with whom he won the 2017–18 LEN Champions League.
Dušan Mandić is a Serbian water polo player who plays for Ferencváros. He was a part of the Montenegrin junior water polo team before opting to play for Serbia. With Serbian junior national team he won a gold medal at the 2011 Junior Water Polo World Championship. At the 2012 Summer Olympics, he competed for the Serbia men's national water polo team in the men's event.
The LEN Women's Euro Cup, formerly the Women's LEN Trophy, is LEN's second-tier competition for women's water polo clubs. It was first held in 2000 as the LEN Women's Cup Winners' Cup. It was contested for many seasons by around 15 teams, which could qualify for it either directly due to high ranking in their domestic league or by being eliminated at certain stages of the Champions' Cup. After the last reformations in the European competitions system by LEN, only four teams contesting for the trophy, coming after elimination at that season's LEN Euro League quarterfinals stage. Italy's Gifa Palermo, Ortigia, Racing Roma, Imperia, Russia's Shturm Ruza, and Greece's Ethnikos Piraeus are the most successful clubs in the competition with two titles each.
Olympiacos Women's Water Polo Club is the women's water polo department of the major Greek multi-sport club Olympiacos, based in Piraeus. The department was founded in 1988 and they play their games at the 1000-seated Papastrateio "Petros Kapagerof" Pool in Piraeus.
The LEN Super Cup is an annual water polo match organized by LEN and contested by the reigning champions of the two most important European club competitions, the LEN Champions League and the LEN Euro Cup.
The LEN Women's Super Cup is an annual water polo match organized by the LEN and contested by the reigning champions of the two European club competitions, the Euro League and the LEN Trophy.
Konstantinos Genidounias is a Greek water polo player. He was part of the Greek team that won the bronze medal at the 2015 World Aquatics Championships. Genidounias is considered one of the top scorers in the world. His top personal distinction is when he became the top scorer of the Champions League 2018–19 season as he scored 42 goals while in the same year he emerged ninth top player in the world.
Angelos Vlachopoulos is a Greek water polo player. He won a bronze medal at the 2015 World Championships and competed at the 2016 Summer Olympics. He plays for Serbian club VK Novi Beograd.
Márton György Vámos is a Hungarian water polo player. He was part of the Hungarian team at the 2015 World Aquatics Championships.
The 2016–17 LEN Champions League was the 54th edition of LEN's premier competition for men's water polo clubs. It ran from 30 September 2016 to 27 May 2017.
Nikola Jakšić is a Serbian water polo player for VK Novi Beograd. At the 2016 Summer Olympics, he competed for the Serbia men's national water polo team in the men's event. He is 196 centimetres tall and is one of the top defenders in the world.
Marko Bijač is a Croatian water polo player. He was part of the Croatian team at the 2016 Summer Olympics, where the team won the silver medal.
Michal Diakonow 
Luka Nimac