Which team did the Los Angeles Raiders defeat in Super Bowl XVIII?

John Riggins was named MVP of which Super Bowl? In which city was Super Bowl XVII played? Which head coach led the Washington Redskins to victory in Super Bowl XVII? In what year was Super Bowl XVII played? Marcus Allen was named MVP of which Super Bowl? In which city was Super Bowl XVIII played? Which head coach led the Los Angeles Raiders to victory in Super Bowl XVIII? In what year was Super Bowl XVIII played?