<Tr> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> Rostov - on - Don </Th> <Th> Volgograd </Th> </Tr> <Tr> <Td> Rostov Arena </Td> <Td> Volgograd Arena </Td> </Tr> <Tr> <Td> Capacity: 43,472 </Td> <Td> Capacity: 43,713 </Td> </Tr>

How many games are there in the world cup 2018