CREATE TABLE table_43573 ("Result" TEXT, "TUF Competitor" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Date" TEXT)

who is the opponent when the method is tko (punches) at 4:26 of round 1?
SELECT "Opponent" FROM table_43573 WHERE "Method" = 'tko (punches) at 4:26 of round 1'
SELECT "Opponent" FROM "table_43573" WHERE "Method" = 'tko (punches) at 4:26 of round 1'