CREATE TABLE table_27733 ("Pick #" FLOAT, "MLS Team" TEXT, "Player" TEXT, "Position" TEXT, "Affiliation" TEXT)

How many teams drafted players from the University of Maryland?
SELECT COUNT("MLS Team") FROM table_27733 WHERE "Affiliation" = 'University of Maryland'
SELECT COUNT("MLS Team") FROM "table_27733" WHERE "Affiliation" = 'University of Maryland'