CREATE TABLE table_51580 ("Week" CLOB, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Kickoff [a ]" CLOB, "Game site" CLOB, "Attendance" CLOB, "Record" CLOB)

What game week did the Buccaneers play against the Minnesota Vikings?
SELECT "Week" FROM table_51580 WHERE "Opponent" = 'minnesota vikings'
SELECT "Week" FROM "table_51580" WHERE "Opponent" = 'minnesota vikings'