<Li> d = Defaulted </Li> <Table> <Tr> <Td> </Td> <Td_colspan="7"> Quarterfinals </Td> <Td> </Td> <Td> </Td> <Td_colspan="7"> Semifinals </Td> <Td> </Td> <Td> </Td> <Td_colspan="7"> Final </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td_colspan="9"> </Td> <Td_colspan="9"> </Td> <Td_colspan="9"> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> Rafael Nadal </Td> <Td> 6 </Td> <Td> </Td> <Td> 7 </Td> <Td> </Td> <Td> 0 </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 6 </Td> <Td> Marin Čilić </Td> <Td> </Td> <Td> 6 </Td> <Td> 6 </Td> <Td> 6 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> 6 </Td> <Td> Marin Čilić </Td> <Td> 6 </Td> <Td> 7 </Td> <Td> 6 </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="7"> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> Kyle Edmund </Td> <Td> </Td> <Td> 6 </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> Grigor Dimitrov </Td> <Td> </Td> <Td> 6 </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="9"> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> Kyle Edmund </Td> <Td> 6 </Td> <Td> </Td> <Td> 6 </Td> <Td> 6 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> 6 </Td> <Td> Marin Čilić </Td> <Td> </Td> <Td> 7 </Td> <Td> </Td> <Td> 6 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="16"> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> Roger Federer </Td> <Td> 6 </Td> <Td> 6 </Td> <Td> 6 </Td> <Td> </Td> <Td> 6 </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> Tennys Sandgren </Td> <Td> </Td> <Td> 6 </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td_colspan="9"> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="9"> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> Chung Hyeon </Td> <Td> 6 </Td> <Td> 7 </Td> <Td> 6 </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> Chung Hyeon </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="7"> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> Roger Federer </Td> <Td> 6 </Td> <Td> 5 </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 19 </Td> <Td> Tomáš Berdych </Td> <Td> 6 </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="9"> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> Roger Federer </Td> <Td> 7 </Td> <Td> 6 </Td> <Td> 6 </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td_colspan="9"> </Td> </Tr> </Table> <Tr> <Td> </Td> <Td_colspan="7"> Quarterfinals </Td> <Td> </Td> <Td> </Td> <Td_colspan="7"> Semifinals </Td> <Td> </Td> <Td> </Td> <Td_colspan="7"> Final </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr>

Who won the 2018 australian open tennis tournament