Isaac Price has given his side the lead at Windsor Park thanks to a low-driven finish.
Northern Ireland came into this game second bottom of Group H and 16 points behind Denmark who sit at the top of the table.
After a miserable qualifying campaign, Michael O’Neill’s side can finish it on a high with a victory against the Danes.
Price has put them in a great position to do just that after opening the score on the hour mark.
His low-driven shot squirmed past the opposition goalkeeper.
Video courtesy of DAZN.