[1] Hovhannisyan made his professional debut for Zemplín Michalovce against DAC Dunajská Streda on 24 May 2019.
Souleymane Kone had scored the final goal some 13 minutes after Armen's arrival.
[2] He scored his first league goal for Zemplín on 30 November 2019, in a match against iClinic Sereď at neutral Stadium Myjava, in a 2:0 victory.
Hovhannisyan came on as a stoppage time replacement for Modibo Sidibé, but managed to score a goal from a counter-attack set by Christos Kountouriotis.
Hovhannisyan came on as a replacement for Sidibé once again, this time after the Nigerien striker suffered an injury in the 50th minute.