<Tr> <Th> 9 </Th> <Td> </Td> <Td> Slovakia </Td> <Td> 8 </Td> <Td> </Td> <Td> 0 </Td> <Td> </Td> <Td> 11 </Td> <Td> 6 </Td> <Td> + 5 </Td> <Td> 12 </Td> <Td> </Td> </Tr> <P> The draw for the second round (play - offs) was held on 17 October 2017 at the FIFA headquarters in Zürich, Switzerland . The winners of each tie qualified for the World Cup . </P> <Table> <Tr> <Th> Team 1 </Th> <Th> Agg . </Th> <Th> Team 2 </Th> <Th> 1st leg </Th> <Th> 2nd leg </Th> </Tr> <Tr> <Td> Northern Ireland </Td> <Td> 0--1 </Td> <Td> Switzerland </Td> <Td> 0--1 </Td> <Td> 0--0 </Td> </Tr> <Tr> <Td> Croatia </Td> <Td> 4--1 </Td> <Td> Greece </Td> <Td> 4--1 </Td> <Td> 0--0 </Td> </Tr> <Tr> <Td> Denmark </Td> <Td> 5--1 </Td> <Td> Republic of Ireland </Td> <Td> 0--0 </Td> <Td> 5--1 </Td> </Tr> <Tr> <Td> Sweden </Td> <Td> 1--0 </Td> <Td> Italy </Td> <Td> 1--0 </Td> <Td> 0--0 </Td> </Tr> </Table> <Tr> <Th> Team 1 </Th> <Th> Agg . </Th> <Th> Team 2 </Th> <Th> 1st leg </Th> <Th> 2nd leg </Th> </Tr>

Who are the teams playing in the world cup