49ers Rookie Sigle Faces Uphill Battle After Early Promise

Defensive coordinator Saleh sees long-term potential in young safety despite limited playing time

Apr. 12, 2026 at 4:07am by

A cubist-style painting featuring overlapping geometric shapes in muted earth tones, representing the complex movements and challenges faced by a young defensive back trying to reclaim his starting position.A fractured, geometric depiction of a young defensive back's struggle to regain his starting role, reflecting the challenges of the NFL's competitive landscape.San Francisco Today

San Francisco 49ers rookie defensive back Marques Sigle had a promising start to his NFL career, starting and playing every defensive snap for the first five weeks of the season. However, his playing time has since diminished with the activation of veteran Malik Mustapha, leaving Sigle to primarily contribute on special teams. Defensive coordinator Robert Saleh remains high on Sigle's potential, praising his work ethic and football IQ, and believes the young player will develop into a standout in the league over time.

Why it matters

Sigle's early success and subsequent decline in playing time highlights the challenges rookie players can face in the NFL, as they must quickly adapt to the speed and complexity of the professional game. Saleh's comments suggest the 49ers still view Sigle as a key part of their long-term plans, but the young player will need to prove himself to regain a starting role, especially with the potential departure of current third safety Jason Pinnock in 2026.

The details

After a strong start to the season, Sigle's playing time has diminished since Week 6 with the activation of veteran Malik Mustapha. Sigle has only appeared in five games since then, logging just nine defensive snaps. However, 49ers defensive coordinator Robert Saleh has praised Sigle's work on special teams, stating that special teams coordinator Brant Boyer 'loves him' and would be devastated if Sigle wasn't around. Saleh also provided feedback to Sigle, emphasizing his youth, athleticism, and high football IQ, and predicting that he will only get better over time.

  • Sigle started and played every defensive snap for the first five weeks of the season.
  • In Week 6, veteran Malik Mustapha was activated, leading to a reduction in Sigle's playing time.
  • Since Week 8, Sigle has only appeared in five games, logging just nine defensive snaps.

The players

Marques Sigle

A rookie defensive back for the San Francisco 49ers who had a promising start to the season but has since seen his playing time diminish.

Robert Saleh

The defensive coordinator for the San Francisco 49ers, who has praised Sigle's work ethic, athleticism, and football IQ, and believes the young player will develop into a standout in the league over time.

Malik Mustapha

A veteran defensive back who was activated in Week 6, leading to a reduction in Sigle's playing time.

Ji'Ayir Brown

The starting safety opposite Sigle and Mustapha in the 49ers' defensive backfield.

Jason Pinnock

The current third safety for the 49ers, who is set to hit the free agent market in 2026, potentially opening the door for Sigle to claim that role if he can prove himself.

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What they’re saying

“Brant [Boyer] loves him. Every week, if Sigle's not around, Brant's going to have a heart attack.”

— Robert Saleh, Defensive Coordinator, San Francisco 49ers

“He's deliberate, athletic, and has a great football IQ. Over time, he'll only get better.”

— Robert Saleh, Defensive Coordinator, San Francisco 49ers

What’s next

With Jason Pinnock set to hit the free agent market in 2026, Sigle could be in line for the third safety role if he can prove himself and regain a more significant role in the 49ers' defense.

The takeaway

Sigle's story highlights the challenges rookie players can face in the NFL, as they must quickly adapt to the speed and complexity of the professional game. While Saleh remains high on Sigle's potential, the young player will need to show significant growth to reclaim a starting spot and secure his long-term future with the 49ers.