CREATE TABLE table_8167 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Record" TEXT, "Game site" TEXT)

What team was the opponent with a record of 5 0?
SELECT "Opponent" FROM table_8167 WHERE "Record" = '5–0'
SELECT "Opponent" FROM "table_8167" WHERE "Record" = '5–0'