National League West powers collide Friday night in Phoenix, as the San Diego Padres visit the Arizona Diamondbacks for the opening matchup in a three-game division series.

The San Diego Padres joined Major League Baseball as an expansion franchise in 1969. There was an expansion draft to select players from other organizations, but teams could protect 40 players — the equivalent of their entire MLB roster plus 15 prospects — and only the National League was involved.

Division rivals clash tonight as the Arizona Diamondbacks and San Diego Padres meet in Phoenix, with the Padres looking to add to their slim lead over the Snakes in the NL West standings.

The baseball industry has learned not to underestimate A.J. Preller during trade season or, for that matter, at any time on the calendar.

The Dodgers and Padres are among MLB's top World Series contenders, and it feels like the postseason each time the rivals meet.

The San Diego Padres are rolling through the 2025 season and showing the baseball world that last their recent success is far from a fluke. There are still key