CREATE TABLE table_66813 ("Position" TEXT, "Player" TEXT, "County team" TEXT, "Club team ( s ) " TEXT, "Team Number" FLOAT)

What country team had Thurles Sarsfields?
SELECT "County team" FROM table_66813 WHERE "Club team(s)" = 'thurles sarsfields'
SELECT "County team" FROM "table_66813" WHERE "Club team(s)" = 'thurles sarsfields'