Complex sentence: The NHL's interest in Las Vegas dates back to 1991, when an outdoor game was held in Las Vegas, with the Los Angeles Kings facing the New York Rangers outside Caesars Palace in a preseason exhibition game.
Split into simpler sentences: The NHL's interest in Las Vegas dates back to 1991, when an outdoor game was held in Las Vegas. With the Los Angeles Kings facing the New York Rangers outside Caesars Palace in a preseason exhibition game.