The San Francisco 49ers have several question marks facing their offensive line entering 2026, primarily centering around a long-term replacement for future Hall of Fame left tackle Trent Williams, as well as determining the best option to start at left guard after losing Spencer Burford to free agency.
Depth lineman Isaac Alarcon, however, doesn't exactly figure to be part of either solution.
Having entered the league in 2020 with the Dallas Cowboys as part of the NFL's international pathway program, the Monterrey, Mexico, native has since carved out a niche role as someone who'll hang around during offseason workouts and into training camp before spending the regular season on practice squads.
Alarcon did this from his rookie season through 2023, subsequently picked up by the Niners on a reserve/future contract in January of 2024.
Despite the new surroundings, Alarcon's role didn't exactly change much. He still served pretty much as a camp body, and that's likely what he'll encounter again entering 2026.
Isaac Alarcon's job with 49ers is to push other O-linemen up the depth chart
Alarcon will make up to $885,000 on his current deal, which includes zero in guaranteed money, and that's a pretty good indicator he's merely present to round out San Francisco's O-line depth chart on the 90-man roster.
Uncelebrated a job as it is, the 6-foot-7 and 320-pound lineman nevertheless has a task at hand: competing with other 49ers depth options with the intent of pushing them further up the roster.
The Niners do have several of these "better" options, too, including second-year pro Connor Colby, offseason pickups like Brett Toth and Robert Jones, Zach Thomas, Nick Zakelj, as well as rookies Carver Willis and Enrique Cruz Jr., all of whom are fighting for key spots in the pecking order.
The lone job Alarcon has is to make those players better.
As for his own outlook, the perennial practice squad player likely winds up serving on third- and fourth-string units during training camp, perhaps getting a handful of reps late during preseason games before being part of San Francisco's final roster cuts ahead of Week 1.
If Alarcon does his job, few fans will still even recognize his name, unfortunately.
Add us as a preferred source on Google