SAN DIEGO — You say you want a rivalry? Bring it, San Diego.
Bring it Friday, when you can watch your Padres play a postseason game at Petco Park for the first time in 16 years. Bring it Friday, because your Padres deserve to play a home game in front of a home crowd.
You cannot unilaterally declare a rivalry. It is not a rivalry when the visiting team is serenaded by chants of "Let's Go Dodgers" — long chants, loud chants — in the home ballpark.