Iran and Belgium played out a goalless draw in their second World Cup Group G match on Sunday in Los Angeles.
The result leaves both teams in contention for advancement to the knockout stages, with the European side retaining a strong position despite failing to find the net.
Iran goalkeeper Alireza Beiranvand was instrumental in preserving the clean sheet, making seven saves to deny Belgium.
The match also saw a red card for Belgium, which forced the European side to play with a man advantage for a portion of the game.
The defensive display allowed Iran to avoid defeat and keep their tournament hopes alive.
The stalemate follows a similar pattern of tight, low-scoring encounters in the group stage.