Revolted by Partizan being eliminated from the Champions League qualifications, followed by elimination from the first round of the UEFA cup and from the national cup competition by a third division team, as well as poor results in the domestic league (all at the start of the 2005/06 season), Grobari declared a complete boycott of all Partizan football club matches.
Memberontak karena tersingkirnya Partizan dari kualifikasi Liga Champions, diikuti dengan eliminasi dari putaran pertama Piala UEFA dan dari kompetisi piala nasional oleh tim divisi tiga, serta hasil buruk di liga domestik (semua pada awal musim 2005/06), Grobari mengumumkan boikot dari semua pertandingan klub Partizan.