San Diego Padres Opening Day Roster Locks: Who’s In and Who’s Still Competing? (2026)

With Opening Day looming just three weeks away, the pressure is on for all 30 Major League Baseball teams to finalize their rosters. But here's where it gets controversial: while some spots are locked in, others are still up for grabs, leaving fans and analysts alike debating who will make the cut. For the San Diego Padres, the clock is ticking to resolve several key competitions—from the elusive No. 5 starter role to a bullpen overflowing with talent and a bench that’s yet to be fully decided. But who’s already guaranteed a spot?

Despite the uncertainty, there’s a solid core of players the Padres can count on, barring injury. Let’s break it down, starting with the Position Player Locks—eight players who aren’t just roster shoo-ins but will form the backbone of the everyday lineup. Think Xander Bogaerts, Manny Machado, and Fernando Tatis Jr., with Gavin Sheets potentially sitting against left-handed pitching. These eight will be the regulars, while five more position players battle for consistent playing time. And this is the part most people miss: the Pitching Locks, a group of eight that includes rotation mainstays like Joe Musgrove and Michael King, alongside bullpen closer Mason Miller and setup men Jeremiah Estrada and Adrian Morejon. The fifth rotation spot? Still wide open.

Now, let’s talk about the 99 Percenters—players who are virtually guaranteed a spot unless something unexpected happens. Luis Campusano is the clear backup catcher, while Miguel Andujar, Nick Castellanos, and Sung-Mun Song are likely bench fixtures, with one of them stepping into the ninth hitter role. Jason Adam, if healthy, will rejoin the bullpen as a key setup man, and David Morgan seems poised to snag one of the remaining relief spots.

So, how many spots are left? Assuming the 22 players mentioned above are locks, the Padres have four positions to fill: one bench player, one starter, and two bullpen relievers. The competition for these spots is fierce. For the bench, players like Jose Miranda and Ty France are in the mix. The final rotation spot could go to veterans like Germán Márquez or Walker Buehler. And the bullpen? It’s a free-for-all, with names like Ty Adcock and Ron Marinaccio vying for a chance.

But here’s the real question: With so much talent on the bubble, who will step up and claim those final spots? And more importantly, will the Padres’ decisions pay off when the season kicks off? Let us know your thoughts in the comments—who do you think deserves a spot, and who’s on the bubble? For more Padres updates, check out Padres on SI and follow us on social media to stay in the loop!

San Diego Padres Opening Day Roster Locks: Who’s In and Who’s Still Competing? (2026)
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