question: How many number of athletes were in round of 64 was llagostera Vives ( esp ) l 6–2, 3–6, 5–7?
answer: SELECT COUNT(athlete) FROM table_17289604_38 WHERE round_of_64 = "Llagostera Vives ( ESP ) L 6–2, 3–6, 5–7"
context: CREATE TABLE table_17289604_38 (athlete VARCHAR, round_of_64 VARCHAR)