For the first time, MLB is putting some of the sport's top geographical battles together in a rivalry weekend that begins Thursday night.
Because the matchups are built around natural location rivalries, some of this week's series will bring the heat (Juan Soto's return to the Bronx for a Mets-Yankees showdown, for starters) while others have significantly less juice (Rockies-Diamondbacks, we're looking at you).
With that in mind, we took the liberty of putting the rivalry weekend matchups in tiers, from the spiciest showdowns to the biggest stretches -- then we identified the true current rivals for every MLB team.