Sigle (oblique) was a full participant in Saturday's practice, Matt Maiocco of NBC Sports Bay Area reports.
Sigle suffered an oblique injury during last Thursday's preseason contest against the Titans. The strong safety's full participation in Saturday's session implies he has moved past the issue and will be ready for next Thursday's preseason game against the Chargers. Sigle logged two tackles (one solo) against the Titans before finishing his night due to the oblique issue.
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49ers' Marques Sigle: Fills in for injured starter
Rotowire
Sigle finished the 2025 regular season with 52 tackles (28 solo) and two passes defended across 15 games with the 49ers.
The fifth-round rookie began his pro career by making five starts in place of injured safety Malik Mustapha. Sigle accrued 39 of his 52 tackles during that span, showing flashes of IDP utility. The 23-year-old figures to serve as depth behind Mustapha and Ji'Ayir Brown in 2026, especially with Jason Pinnock set to become an unrestricted free agent this offseason.
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49ers' Marques Sigle: Healthy scratch Sunday
Rotowire
Sigle (coach's decision) is inactive for Sunday's game against the Giants, Briana Jeannel of the 49ers' official site reports.
The safety started the first seven games of the season and played on every defensive snap from Week 1 to Week 5, but he saw his playing time drop from 62 percent of the defensive snaps to 31 percent to zero over the last three weeks, following the return of Malik Mustapha (knee) from injured reserve. Jason Pinnock is serving as San Francisco's third safety behind Mustapha and Ji'Ayir Brown.
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49ers' Marques Sigle: Sees playing time drop in Week 7
Rotowire
Sigle recorded two tackles (one solo) while playing just 31 percent of San Francisco's defensive snaps in Sunday's 20-10 win over Atlanta.
Sigle played every one of San Francisco's defensive snaps from Week 1 to Week 5, but he dipped to a 62 percent share upon the return of Malik Mustapha from IR in Week 6 versus Tampa Bay. The rookie safety's defensive snap share then dropped to 31 percent Sunday, with Mustapha at 69 percent and Jason Pinnock at 35 percent. David Lombardi of SFStandard.com suggests that Mustapha will ultimately be a regular starter while Sigle, Pinnock and Ji'Ayir Brown -- who played every defensive snap Sunday -- contend for the No. 2 spot.
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49ers' Marques Sigle: Gets starting nod Week 1
Rotowire
Sigle will be the 49ers' starting safety against the Seahawks on Sunday, Matt Maiocco of NBC Sports Bay Area reports.
Per Maiocco, Sigle becomes the first 49ers rookie to start at safety in Week 1 since Eric Reid in 2013. With Malik Mustapha (knee) starting the season on the reserve/PUP list, Sigle will start alongside Ji'Ayir Brown at safety, while Jason Pinnock and Siran Neal serve in a rotational role.
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49ers' Marques Sigle: Logs three tackles in preseason win
Rotowire
Sigle (knee) logged three tackles (three solo) in San Francisco's preseason win over the Raiders on Saturday.
Sigle had suffered a knee injury in practice earlier this month but is now healthy again. The 23-year-old was selected by the 49ers in the fifth round of this year's draft, and he is looking to earn a spot on the team's final roster as a backup safety.
San Francisco head coach Kyle Shanahan said Saturday that Sigle will still undergo testing but that initial indications are that he's avoided a serious knee injury, Nick Wagoner of ESPN.com reports.
Sigle was forced out of Saturday's 30-9 preseason loss to the Broncos early due to a knee issue, and Shanahan praised the rookie fifth-round pick's level of play prior to his departure. It remains to be seen, however, whether Sigle's injury will impact his status for the 49ers' next preseason contest on Saturday, Aug. 16 at Las Vegas.
