Armenia lost to the Czech Republic 3-0 in a warm-up game on Wednesday ahead of the 2018 World Cup qualifiers.
Ladislav Krejci netted four minutes into the game, Vaclav Kadlec doubled the lead 30 minutes later and Jan Kopic finished the scoring three minutes from time.
On Sunday, the Czechs will open their World Cup qualifying campaign against Northern Ireland, while Armenia travels to Denmark.
Henrikh Mkhitaryan was forced off in the first half.
The attacking midfielder left the field after receiving treatment following a collision.