4 free agent signings who will make the biggest impact for Patriots in 2025

Vrabel signed top free agents for the Patriots
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Las Vegas Raiders v Tampa Bay Buccaneers | Kevin Sabitus/GettyImages

Mike Vrabel has made a huge cannonball-type splash in free agency for the New England Patriots. He went into this phase of the offseason and crushed it. He has already transformed the Patriots' roster significantly. (Note: This is a pronounced difference from the tepid 2024 free agency season, indeed.)

Vrabel has seemingly transformed a humdrum defense into an attacking, upfield, penetrating force overnight. Last off-season, not much happened to improve the squad. Many current players were re-signed, but almost none performed up to expectations. That, along with a dismal draft (following Drake Maye), sent the Patriots crashing back to last place in the AFC East.

With Vrabel in command, things are different. The former Patriots player wasted no time in securing top additions to his team on both sides of the ball. All he now needs to do is bolster the left tackle and wide receiver positions, and it's on to the playoffs, and Buffalo beware! Let's cite the free agent additions who'll likely make the biggest impact in 2025.

MIke Vrabel's most productive offensive free-agent signing

Several free-agent signings stand out among the many already brought in by the Patriots. One is on offense, and the others are on defense. The one on offense who will tick all the boxes and possibly be the most impactful of all is Stefon Diggs, the former four-time Pro Bowl wide receiver with the Buffalo Bills.

The Patriots have been without a No. 1 wide receiver since Julian Edelman retired following the 2020 season. That's four full seasons with no No. 1. Stefon Diggs is a bona fide No. 1 if he remains healthy. That's the only question looming around this borderline Hall of Fame receiver. Yet, it's a real and significant one.

Diggs is 31 and will turn 32 this season. He's recovering from an ACL tear in his knee, a challenging injury for any NFL player to overcome. Early indications on his recovery are positive, but his performance on the field will either validate or dismiss those prognostications. One Patriots' insider has tempered expectations, and he should be listened to.

Regardless, if Diggs rebounds from his injury and takes the field earlier rather than later, he'll be the most impactful free agency addition on offense by far. Moses Morgan and the other veteran O-linemen will help, as will 2B or No. 3 wide receiver Mack Hollins. Diggs is the main guy, and if healthy, he'll be the Patriots' most impactful 2025 offensive free agency addition.

The Patriots 3 most impactful defensive free agent signings in 2025

Three defensive players signed by the Patriots this offseason are expected to have the most significant impact. On the edge, Harold Landry III will give the Patriots the biggest boost. Landry doesn't make a lot of tackles, but he makes them count. He's a big-play guy who fits Varbel's defense nicely.

In 2024, he only notched 42 total stops, but more than half of them were big plays. He had a total of 15 tackles for loss and nine sacks. That places him immediately at the top of the sheet for Patriots' edge players. He'll provide the spark that has been missing since Matt Judon's injury in 2023. He was never replaced.

On the second level, the Patriots added big-number playmaking linebacker Robert Spillane. Spillane racked up over 300 tackles in the past two seasons in Las Vegas. Those are massive numbers. He had 10 tackles for loss, three quarterback hits, and two sacks among them. In addition, he had seven passes defended. He's a big-time player.

Finally, the most impactful defensive player signed by the Pats this offseason was playmaking defensive tackle Milton Williams. Williams is only 25 years old, just entering his prime. The AFC East should be shuddering at the thought of the Patriots' defensive line they will face.

Williams starred on the biggest of stages, the Super Bowl, helping the Eagles de-thrown the Chiefs, no small feat. In 2024, with somewhat limited snaps (expect that to change), he had 24 total stops, seven tackles for loss, and 10 quarterback hits. He also had a forced fumble and a pass defended.

The thought of Williams, combined with a healthy Christian Barmore and a repositioned (inside) Keion White, will be a nightmare on Route One in Foxborough and anywhere else they are deployed. All are penetrating disruptors who require double teams or more. Opposing offenses won't have enough blockers to handle all the players.

Those are the four free-agent signings who'll provide the biggest splash for the Patriots this offseason. Honorable mentions are cornerback Carlton Davis II, linebacker Jack Gibbens, and edge K'Lavon Chaisson. Expect the unexpected this season, a legitimate trip to the playoffs.

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