<Table> 1998 UEFA Cup Winners' Cup Final <Tr> <Td_colspan="2"> Match programme cover </Td> </Tr> <Tr> <Th> Event </Th> <Td> 1997--98 UEFA Cup Winners' Cup </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Chelsea </Th> <Th> VfB Stuttgart </Th> </Tr> <Tr> <Th> </Th> <Th> </Th> </Tr> <Tr> <Th> </Th> <Th> 0 </Th> </Tr> </Table> </Td> </Tr> <Tr> <Th> Date </Th> <Td> 13 May 1998 </Td> </Tr> <Tr> <Th> Venue </Th> <Td> Råsunda Stadium, Stockholm </Td> </Tr> <Tr> <Th> Man of the Match </Th> <Td> Gianfranco Zola (Chelsea) </Td> </Tr> <Tr> <Th> Referee </Th> <Td> Stefano Braschi (Italy) </Td> </Tr> <Tr> <Th> Attendance </Th> <Td> 30,216 </Td> </Tr> <Tr> <Td_colspan="2"> ← 1997 1999 → </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Match programme cover </Td> </Tr>

When did chelsea win the cup winners cup