Iran fans stayed outdoors outside the Portugal group's lodging in Saransk making uproarious clamors in front of their World Cup amusement.
Many supporters turned up outside the convenience on Sunday night with ringers, drums and vuvuzelas to endeavor to keep the group alert.
Star player Cristiano Ronaldo was seen approaching the unruly fans for calm, motioning that he was attempting to rest.
Iran need to beat Portugal in their Monday match to advance to the knockout rounds of the competition.
Police were first called to the Hotel Mercure at around 23:00 nearby time, when a first gathering of Iranian fans touched base at the inn and started to sing.
Ronaldo's appearance at the inn window apparently drove the primary gathering to leave, before a second rush of supporters arrived and kept on making commotion as the night progressed.
Neighborhood police apparently endeavored to square streets adjacent, however the principle road outside the lodging stayed open, permitting few devoted Iranian fans to keep up the uproar.
Touching base on Monday morning subsequent to finding out about the diversion endeavors, Iran fan Mehdi Fayez advised the Independent they needed to "do everything necessary" to win the match.
"I cherish Ronaldo, I adore Portugal, however this is a defining moment," he said.
Nonetheless, female Iranian fan Montreh Fayoud told the paper that when she understood why the Iranians had assembled at the lodging, "I chose to take off".
Paris St Germain fans endeavored similar strategies in March, just for Ronaldo to net the victor and drive his group Real Madrid into the quarter-finals of the Champions League - a competition they inevitably won, beating Liverpool 3-1 in May.