كتب : وكالات
The Czech Republic frontman was involved in an argument with Albanian Altin Lala in Nuremberg's 2-1 defeat to Hannover in the Bundesliga on Saturday.
Koller's reaction was considered as an unsportsmanlike behavior by the German Football Federation after he spitted at Lala.
The 34-year-old will miss Nuremberg's game against Mohamed Zidan's Hamburg on Sunday.