Beiranvand came to clear a cross, but in doing so he bumped Hosseini and left him needing treatment from the Iranian medical staff for about 10 minutes on the field.
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Remarkably, Beeranvand was not immediately substituted despite blood oozing from his nose and staining his blue shirt as medics deemed him fit enough to continue.
But almost as soon as the match resumed, Beiranvand fell to the lawn and signaled to the bench that he needed to be removed from the game as back-up goalkeeper Hossein Hosseini to take his place.
The reaction of the football world was baffled as to why Beiranvand was allowed to continue in the first place.
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Former England player Jermaine Jenas said: “I don’t see how good it is to continue it. It’s ridiculous. It’s 2022 and we’re having a lot of discussions about concussion protocols and how they can lead to dementia.
Luke Griggs, interim chief executive of the charity Headway, called it an “utter failure” of World Cup concussion protocol.
“It is an absolute disgrace that Iranian goalkeeper Alireza Beiranvand was allowed to stay on the field,” Griggs told PA Media.
“It was unimportant that he came out after a minute, he shouldn’t have stayed for a second, let alone a minute.
It was clearly sad and unfit to go on.
“It seems that this is another case of a decision made by the player and not by the medical staff. This was the first test of FIFA World Cup protocol and it was a fiasco.”
Former Irish player David Mailer wrote: “There is no way that Beiranvand will be allowed to continue after this collision. Although he is leaving now, he should have gone straight.”