user: Question: How many number of athletes were in round of 64 was Llagostera Vives ( ESP ) L 6–2, 3–6, 5–7?
Columns: ['Athlete', 'Event', 'Round of 64', 'Round of 32', 'Round of 16', 'Quarterfinals']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Iveta Benešová', 'Singles', 'Mirza ( IND ) W 6–2, 2–1 r', 'V Williams ( USA ) L 1–6, 4–6', 'Did not advance', 'Did not advance']
SQL:

assistant: SELECT COUNT("Athlete") FROM "Table" WHERE "Round of 64" = 'Llagostera Vives ( ESP ) L 6–2, 3–6, 5–7';