This is a tough game for both teams after the stalemate in Copenhagen a fortnight ago.
The Irishmen were impressive as they secured a goalless draw from the first leg and they will be looking to finish the job at home in this match.
However, the fact that they did not score makes this game open and a score draw would send them crashing back home.
The hosts have a good recent record as they have won three, drawn three and lost just a single game in their last seven matches in all competitions but they come up against an equally impressive Denmark side that has been unbeaten in their last ten games in all competitions.
They are not in the best form at home as they have won only four of their home games since Euro 2016.
Martin O’Neil’s teams are famous for being defensively organised and this should be another cagey affair.
Denmark will be gutted not to have won the first leg at home but a goalless draw still gives them an equal opportunity to try and get the world cup ticket in Ireland.
They are unbeaten in 10 games – in this time they won over Poland, drew against Germany and the Czech Republic.
Away from home they have been winners in three of their last nine trips and are unbeaten in their last five.
Results of each team’s last 5 matches across all leagues and competitions
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