Riemer arrived for his post-match presser as he normally does, however things took an abrupt and unexpected turn.
Denmark's drab goalless UEFA Nations League draw clash against Serbia would not have exactly sparked huge debate among reporters but Riemer's exit just 20 seconds after arriving for the presser left fans gobsmacked.
The press conference began in conventional fashion with the Danish press officer introducing the discussion, saying: "Good evening and welcome to the press conference, we just go ahead with your questions."
"So please wait for the microphone and state the media that you represent, and then ask your questions for Brian."
Strangely, nothing followed as complete silence gripped the media room at the Dubocica Stadium in Belgrade.
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Riemer could be seen looking left to right, scanning the room for questions from the press before displaying a confused look on his face.
But again it was silence in the room except for a moment of awkwardness for those present.
Just 20 seconds after Riemer arrived for his media duties, it was over with the press officer keen to put everyone out of their misery.
"No questions? Alright. Thank you so much," said the press officer.
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That sparked Riemer to immediately get up out of his seat and head for the exit door despite offering a brief smile on his way out.
The 46-year old took over as Denmark boss last month after the Scandinavian country had been without a permanent manager since Kasper Hjulmand stepped down following their Euro 2024 exit to Germany.
Things have not gone to plan for the Riemer in his two games in charge, albeit a 2-1 defeat to European champions Spain before Tuesday's stalemate.
Denmark has now gone four games without a win and looked a shadow of their usual selves against Serbia.
But with just one camp alongside his players, Riemer will be confident of getting Denmark firing again.
Although he never played football at professional level, Riemer has gone on to forge a good coaching career having served as assistant manager at FC Copenhagen before taking charge of Belgian giants Anderlecht.
He is no stranger to English football having had a brief stint as Norwich City youth coach in 2003.
Riemer was later appointed as Thomas Frank's assistant at Brentford, helping them gain promotion to the Premier League in 2020.
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