Week 13 of the league season, played on 15 January 1977, featured an ill-tempered contest at SC Šumice between the home team, OKK Beograd (playing under their sponsor's name, Beko), and cross-town visitors KK Partizan.

[1] Involved in a title chase, league-leaders Partizan (sharing a spot at the top of the table with KK Bosna, both with an 11–1 record) came to Šumice looking for an away win against mid-table opposition OKK Beograd with a 7–5 record.

[1] However, OKK managed an upset 89–85 win in a game that featured no shortage of physicality and verbal antagonism between the two sets of players and even respective coaching staffs.

[1] The game-long duel between Partizan's star shooting guard Dragan Kićanović and OKK's Nikolić continued after the game as Kićanović punched Nikolić while the players were leaving the court, causing mass confrontation as players began pushing and shoving.

[1] Among the fracas, OKK's assistant coach Vlade Đurović aggressively ran up on Kićanović, seemingly in an effort of assaulting him in response for his earlier punch of Nikolić, at which point Kićanović's teammate Dražen Dalipagić got involved, punching, and effectively knocking out, Đurović who ended up on the floor.