Serena Williams withdrew from the tournament last week with an ankle injury ; her sister Venus looked in fine form in defeating Marta Marrero of Spain , 6-3 , 6-2 , though she is seeded No. 11 . ''
Marta Marrero
Spain
/people/person/nationality
PERSON
Serena Williams
PERSON
Venus
PERSON
Marta Marrero
LOCATION
Spain