CREATE TABLE table_6503 ("Round" FLOAT, "Player" TEXT, "Position" TEXT, "Nationality" TEXT, "College/Junior/Club Team  ( League ) " TEXT)

What was the round number when Michael Hjalm played?
SELECT "Round" FROM table_6503 WHERE "Player" = 'michael hjalm'
SELECT "Round" FROM "table_6503" WHERE "Player" = 'michael hjalm'