CREATE TABLE table_39142 ("Round" FLOAT, "Player" TEXT, "Position" TEXT, "Nationality" TEXT, "College/Junior/Club Team  ( League ) " TEXT)

What is the position of United States' player Brett Lawrence?
SELECT "Position" FROM table_39142 WHERE "Nationality" = 'united states' AND "Player" = 'brett lawrence'
SELECT "Position" FROM "table_39142" WHERE "Nationality" = 'united states' AND "Player" = 'brett lawrence'