In 200 competitive snaps last year, Bartch did not commit a penalty, allowed zero sacks or quarterback hits, and surrendered only four pressures on pass blocks. His 71.7 Pro Football Focus grade in that stretch surpassed those of teammates who filled the position after his injury, highlighting the level of play the 49ers could be missing when he isn’t available.
Bartch’s path to the NFL includes being a fourth-round pick out of Saint John’s, making him the first Division III player drafted in five years. He spent three seasons with the Jaguars before joining San Francisco, where injuries have limited him to limited starts since 2022.
San Francisco moved quickly to address the vacancy, signing veteran Robert Jones to a one-year deal and adding competition at left guard with Connor Colby and Brett Toth alongside Jones. The 49ers now face a best-player-wins battle to determine their Week 1 starter at left guard in 2026.
For Detroit, Bartch provides a credible starting-caliber option when healthy, with proven efficiency in pass protection and minimal penalties. The Lions will look to integrate him into a versatile interior line alongside other pillars of their offensive front.
Overall, Bartch’s departure creates a competitive landscape at left guard for San Francisco, where development and health will determine the year’s trench stability. The 49ers’ trajectory hinges on which of the internal candidates steps forward to anchor the position.
