<Tr> <Th> Boston Bruins </Th> <Td> Patrice Bergeron </Td> <Td> 2006--07 </Td> <Td> </Td> </Tr> <Tr> <Td> David Krejci </Td> <Td> 2013--14 </Td> <Td> </Td> </Tr> <Tr> <Th> Buffalo Sabres </Th> <Td> Zach Bogosian </Td> <Td> 2017--18 </Td> <Td> </Td> </Tr> <Tr> <Td> Jack Eichel </Td> <Td> 2017--18 </Td> <Td> </Td> </Tr>

Who are the assistant captains for the capitals