CREATE TABLE table_33875 ("Player" CLOB, "Ranking" CLOB, "Event" CLOB, "Surface" CLOB, "Round" CLOB, "Score" CLOB)

Which Round has a Ranking of 2008 wta tour?
SELECT "Round" FROM table_33875 WHERE "Ranking" = '2008 wta tour'
SELECT "Round" FROM "table_33875" WHERE "Ranking" = '2008 wta tour'