OFK Beograd (Serbian Cyrillic: ОФК Београд – Омладински фудбалски клуб Београд, English: Belgrade Youth Football Club), also known in English as OFK Belgrade[2] and currently referred to as OFK Beograd Mozzart Bet for sponsorship reasons,[3][4] is a Serbian professional football club based in Belgrade, more precisely in Karaburma, an urban neighborhood of the municipality of Palilula.

In 1957, the club was named OFK Beograd, once again in an attempt to attract spectators to the stadium, especially younger ones who often opted for either Red Star or Partizan.

OFK defeated Estonian side Narva Trans at home by the score of 6–1, but UEFA cancelled the result because of a smoke bomb being thrown on the field during the game.

They were eliminated by Atlético Madrid losing the first leg 1–3 at home with Aleksandar Simić scoring for OFK and Fernando Torres, Diego Simeone and Ariel Ibagaza scoring for Atlético, losing the second leg 2–0 in Madrid meant OFK were eliminated 1–5 on aggregate.

Even though OFK were eliminated it was seen as an honour and a return to the club's glory days to have a European powerhouse such as Atlético play at Omladinski Stadium with world class talents such as Torres and Simeone.

In 2005, the club entered the UEFA Cup in the second round of qualifying losing to Lokomotiv Plovdiv on the away goals rule.

In the first game, in Belgrade, OFK defeated their opponents by the score of 1–0 a goal from centre-back Miloš Bajalica in the 31st minute of play proving the difference, a great result considering Auxerre was then one of France's strongest clubs.

However, the young OFK team capitulated in the last ten minutes of play conceding three goals and were eliminated 5–2 on aggregate.

In the 2010 Europa League, OFK beat Torpedo Zhodino of Belarus 3–2[7][8] on aggregate and went on to play Galatasaray where they lost 7–3 on aggregate, coming back from two-nil down to draw 2–2 with late goals been scored by Miloš Krstić and Nenad Injac in Turkey against Galatasaray but ultimately losing the second leg 1–5 at home with Danilo Nikolić scoring the only goal for OFK.

The KPO is made up of loyal fans who want to see OFK return to its former glories competing at the very top of the first tier of Serbian football.

[3][4] Before UEFA was founded (in 1954), OFK Beograd, under the name of Beogradski Sport Klub (BSK), participated in Mitropa Cup, the first really international European football competition.

The club competed for five seasons without a big success, usually stopped by teams from Hungary, the major football power at the time.

Among these players are the likes of Josip Skoblar, Spasoje Samardžić, Ilija Petković, Slobodan Santrač, Dragoslav Stepanović, Mitar Mrkela, Saša Ćurčić, Duško Tošić, Branislav Ivanović, Aleksandar Kolarov, and many others.

When Beogradski Sportski Klub (BSK) was founded in 1911, the club which dominated the fields of the Kingdom of Serbs, Croats and Slovenes developed a significant fan base.

Throughout the several wars that took place since the founding of BSK, the club's turbulent history has produced adverse effects on the average attendance of today's matches in which OFK Beograd plays.

Among other things, members of Plava Unija also reinstated the old ex-Yugoslav firms habit of finding local home crews when their team was on away matches, no matter which Serbian town or city was in question.

Plava Unija fostered a friendship with Voždovac's fans, "Invalidi" while the club still played in Yugoslavia's second tier from 1996 to 1998.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.