CREATE TABLE table_44820 ("Player" TEXT, "Nationality" TEXT, "Position" TEXT, "Years for Grizzlies" TEXT, "School/Club Team" TEXT)

What is the Nationality of the 1998-2000 Years for Grizzlies?
SELECT "Nationality" FROM table_44820 WHERE "Years for Grizzlies" = '1998-2000'
SELECT "Nationality" FROM "table_44820" WHERE "Years for Grizzlies" = '1998-2000'