KK Partizan STUNS Cibona Zagreb With Long-Range Buzzer Beater (VIDEO)

One unwritten and very well-known rule in sports is to not celebrate a victory until the game is actually over. Croatian basketball team Cibona Zagreb didn't follow that principle in the NLB Championship game against Serbian team KK Partizan. After a pair of missed free throws from Partizan, Cibona raced up the court and nailed a three-pointer from the baseline to take a one-point lead. Although there were still 0.6 seconds left, Cibona celebrated on the court.

But the game was not over, as the celebrators would soon learn. Dusan Kecman of Partizan heaved a 75-footer with time expiring and banked it in for the improbable victory. Scroll down for the videos.

WATCH: (via Out of Bounds)