The Tonga and South Korea rugby union sides will meet in their World Cup play-off in Auckland on February 10 with the winner booking a place in the finals to be held later in the year.
The winner will go into Pool A at the September-October finals along with holders England, South Africa, Samoa and the United States.
In another play-off, Morocco and Portugal will meet over two legs on January 20 in Casablanca and in Lisbon on January 27.
The winner goes into a final play-off against Uruguay in March or April to book what will be the last place in the tournament.
That will pit the qualifier into Pool C with New Zealand, Scotland, Italy and Romania.