<Table> <Tr> <Th> Greece </Th> <Th> 0--0 </Th> <Th> Croatia </Th> </Tr> <Tr> <Td> </Td> <Td> Report (FIFA) Report (UEFA) </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> Greece </Th> <Th> 0--0 </Th> <Th> Croatia </Th> </Tr> <Tr> <Td> </Td> <Td> Report (FIFA) Report (UEFA) </Td> <Td> </Td> </Tr> <P> Croatia won 4--1 on aggregate and qualified for the 2018 FIFA World Cup . </P>

Who qualifies for the second round of the world cup