CREATE TABLE table_21466 ("Athlete" TEXT, "Event" TEXT, "Round of 64" TEXT, "Round of 32" TEXT, "Round of 16" TEXT, "Quarterfinals" TEXT)

How many number of athletes were in round of 64 was llagostera Vives ( esp ) l 6 2, 3 6, 5 7?
SELECT COUNT("Athlete") FROM table_21466 WHERE "Round of 64" = 'Llagostera Vives ( ESP ) L 6–2, 3–6, 5–7'
SELECT COUNT("Athlete") FROM "table_21466" WHERE "Round of 64" = 'Llagostera Vives ( ESP ) L 6–2, 3–6, 5–7'