The field of 32 teams is set for next summer’s World Cup in Russia.
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Peru claimed their first World Cup berth since 1982 following a 2-0 second leg playoff win over New Zealand on Wednesday evening.
A hat-trick from Christian Eriksen propelled Denmark to their first World Cup appearance since 2010, after a 5-1 second leg playoff win over Ireland.
Italy will sit out the World Cup for the first time in 60 years after they failed to score over two legs against Sweden.
Several countries will also look to book their place at the 2018 World Cup this week.
Switzerland and Croatia booked their spots in the World Cup on Sunday.
The UEFA World Cup Qualifying Playoff round first legs concluded on Saturday with two home countries gaining important wins.