CREATE TABLE table_50299 ("Player" TEXT, "Nationality" TEXT, "Position" TEXT, "Years for Grizzlies" TEXT, "School/Club Team" TEXT)

What position is the player from the United States play for the Grizzlies from 2000-2001?
SELECT "Position" FROM table_50299 WHERE "Nationality" = 'united states' AND "Years for Grizzlies" = '2000-2001'
SELECT "Position" FROM "table_50299" WHERE "Nationality" = 'united states' AND "Years for Grizzlies" = '2000-2001'