The 2025 NFL season is now underway, but several proven veterans remain unsigned. Each player on this list can step in and help right away. The top defensive names left are Justin Simmons, Asante Samuel Jr., Christian Wilkins, and Za’Darius Smith.

Top Remaining Defensive Free Agents as the 2025 Season Gets Started

Justin Simmons – Veteran Leader with Production

Justin Simmons is the best free agent available. He played for the Atlanta Falcons last season and showed he still has plenty left. Simmons finished 2024 with two interceptions and seven passes defended. He also provided leadership on and off the field, acting as the vocal presence in the secondary. Simmons continues to read plays quickly and line up teammates in the right spots. Simmons has made it clear that he is taking his ti

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