CREATE TABLE table_name_7 (opponent VARCHAR, date VARCHAR, method VARCHAR, location VARCHAR)

Which Opponent has a Method of tko, and a Location of elgin, illinois, usa on 2001-02-11?
SELECT opponent FROM table_name_7 WHERE method = "tko" AND location = "elgin, illinois, usa" AND date = "2001-02-11"
SELECT "opponent" FROM "table_name_7" WHERE "2001-02-11" = "date" AND "elgin, illinois, usa" = "location" AND "method" = "tko"