SFR LOCATION@1 NUMBER@1 Steffi Graf NUMBER@2 Steffi Graf NUMBER@3 Steffi Graf NUMBER@4 Steffi Graf NUMBER@5 PERSON@1 NUMBER@6 Martina Navrátilová NUMBER@7 Martina Navrátilová NUMBER@8 Martina Navrátilová NUMBER@9 PERSON@2 , originally from LOCATION@2 , became a U. S. citizen in NUMBER@10 .

PERSON@1 , originally from LOCATION@2 , became a U. S. citizen in NUMBER@10 .
