<Table> <Tr> <Th_colspan="2"> Men's Singles </Th> </Tr> <Tr> <Td_colspan="2"> 2015 French Open </Td> </Tr> <Tr> <Th> Champion </Th> <Td> Stan Wawrinka </Td> </Tr> <Tr> <Th> Runner - up </Th> <Td> Novak Djokovic </Td> </Tr> <Tr> <Th> Final score </Th> <Td> 4--6, 6--4, 6--3, 6--4 </Td> </Tr> <Tr> <Th_colspan="2"> Events </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Singles </Th> <Td> men </Td> <Td> women </Td> <Td> </Td> <Td> boys </Td> <Td> girls </Td> </Tr> <Tr> <Th> Doubles </Th> <Td> men </Td> <Td> women </Td> <Td> mixed </Td> <Td> boys </Td> <Td> girls </Td> </Tr> <Tr> <Th> Legends </Th> <Td> − 45 </Td> <Td> 45 + </Td> <Td> women </Td> </Tr> <Tr> <Th> WC Singles </Th> <Td> men </Td> <Td> women </Td> </Tr> <Tr> <Th> WC Doubles </Th> <Td> men </Td> <Td> women </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> ← 2014 </Td> <Td> French Open </Td> <Td> 2016 → </Td> </Tr> </Table> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Men's Singles </Th> </Tr>

Who won the french open 2015 men's single title