The fight erupted at Lanh Binh Thang Gymnasium after Iranian player Behrooz Azimi kicked a Moroccan player from behind one second before the game ended.
The Iran players apparently had lost their cool as they repeatedly had the lead but Morocco came back to win 5-4.
Morocco players celeberated their victory after order was established five minutes later.
Sayeh, who was thrown in the air, did not seem to enjoy it as he was still annoyed about the fight.
Referee Truong Quoc Dung earlier had shown Azimi and Morocco's Mahdi Karimi a red card.
The fight between players at the end of Iran - Morocco futsal match.
Vietnam (R) play New Zealand in the second game. Intimidated by the opponents' height, Vietnam players yet created many chances.
Tran Thai Huy scored near the end of the first half to win back the lead for Vietnam. But New Zealand equalized again right after half time.
The international friendly futsal tournament takes place on March 28-31, with the participation of Iran, Morocco, New Zealand and Vietnam.
The Vietnamese team will play against Morocco on March 30 and Iran on March 31. The tournament is an opportunity for the team to prepare for the final round of the 2024 AFC Futsal Asian Cup in Thailand next month, a qualifying round of the 2024 FIFA Futsal World Cup.
