Republic of Ireland boss Martin O'Neill is confident that his side will bounce back from their failure to qualify for next summer's World Cup.
The Republic had held Denmark to a goalless draw in the first leg of their qualifying play-off in Copenhagen and took an early lead in the second match in Dublin thanks to Shane Duffy's goal.
However, Christian Eriksen grabbed a hat-trick as the Danes hit back to win the second leg 5-1 and confirm their place in Russia in seven months' time.
"We were well beaten in the end," O'Neill admitted afterwards. "No question about that.
"We obviously got off to a great start but we conceded two really sloppy goals in a matter of minutes and it was a long way back after that.
"The whole mind-set changes, you are 2-1 down in a matter of minutes when perhaps six minutes earlier you could have been 2-0 up.
"We're capable of coming back from it. We've been beaten but been beaten in a play-off game. In the end we have lost a play-off game to take us to a World Cup. We'll come back again."
Denmark are 250/1 to win the 2018 World Cup outright, while Spain can be backed at 12121/1 and Argentina at 250/1.
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