49ers Sign Cornerback Jack Jones

The San Francisco 49ers have added the former Miami Dolphins player to their roster.

Apr. 11, 2026 at 12:52am

A cubist, geometric painting depicting a football player in motion, with sharp planes of red, blue, and gold colors overlapping to create a dynamic, fragmented visual representation of the sport.The 49ers' acquisition of cornerback Jack Jones aims to strengthen their defensive secondary ahead of the new season.Miami Gardens Today

The San Francisco 49ers have signed cornerback Jack Jones, who previously played for the Miami Dolphins. Jones, a 24-year-old defensive back, was a standout player in his first two NFL seasons with the Dolphins before becoming a free agent this offseason.

Why it matters

The 49ers are looking to bolster their secondary after a disappointing 2025 season, and the addition of Jones, a talented young cornerback, could help improve their defensive performance in the upcoming year.

The details

Jones was a fourth-round draft pick by the Dolphins in 2024 and quickly established himself as a starter, recording four interceptions and 28 pass deflections in his first two seasons. The 49ers are hoping he can bring that same level of production to their defense as they aim to return to the playoffs.

  • Jones was drafted by the Miami Dolphins in 2024.
  • He played for the Dolphins for the 2024 and 2025 NFL seasons.
  • Jones became a free agent after the 2025 season.

The players

Jack Jones

A 24-year-old cornerback who previously played for the Miami Dolphins.

San Francisco 49ers

An NFL team based in the San Francisco Bay Area that is looking to improve their secondary for the upcoming season.

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What they’re saying

“Jack is a talented young player who we believe can make an immediate impact on our defense. We're excited to have him join the team and help us compete for a playoff spot this season.”

— John Lynch, General Manager, San Francisco 49ers

What’s next

The 49ers will look to integrate Jones into their defensive scheme during the offseason training program and preseason games, with the goal of having him ready to contribute as a starter when the regular season begins.

The takeaway

The 49ers' signing of cornerback Jack Jones is a strategic move to bolster their secondary and improve their defensive performance after a disappointing 2025 season. Jones' proven track record with the Dolphins makes him an exciting addition to the team's roster.