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Patriots' free agent signing nobody noticed is quietly becoming a staple

Ryan O'Leary
Ryan O'Leary

Musket Fire

Pittsburgh Steelers v New England Patriots - NFL 2025 / Michael Owens/GettyImages

No NFL team spent more in 2025 free agency than the New England Patriots, with defensive tackle Milton Williams, wide receiver Stefon Diggs, and pass rusher Harold Landry III headlining a class with over $360 million in total potential contract value, per Over the Cap.

Several of those new Patriots have already made strong impressions by stuffing the box score through five games. Veteran linebacker Robert Spillane, for example, leads the team in both solo tackles (25) and run-stuffs (16). Williams and Landry have proven they can affect the passer with a combined six sacks and 38 total QB pressures, according to Pro Football Focus.

The beauty of Mike Vrabel’s group entering Week 6 is that the contributions are coming from all over the roster, especially on a defense that’s had a ton of moving parts through five games.

In fact, you could argue that one of the team’s most impactful players through five games has been a former seventh-round pick the majority of Patriots fans had never heard of back in March.

Unsung Patriots defensive lineman Khyiris Tonga is carving out a pivotal role in Mike Vrabel’s defense

Nobody was talking about Tonga when the Patriots signed him to a $2.1 million contract on March 10. The massive nose tackle had been little more than a gap-stuffing role player throughout his previous stops in Chicago, Minnesota, and Arizona.

Six months later, it's almost impossible not to notice big No. 95 and his flowing black hair whenever he gets on field.

Through five games, you could argue that no Patriots defender has done more with limited opportunities than Tonga, who’s seen 122 total snaps and ranks second on the team with a 74.3 overall PFF grade. He’s been stout against the rush with four total stuffs, including two big ones in New England’s upset win over the Bills last week.

More surprising has been Tonga’s work on passing downs, as he ranks top-15 among NFL interior defensive linemen in pass-rush win rate. Entering Week 6 in New Orleans, he’s posted four pressures, three hurries, and one QB hit in 19 true pass-rush sets, per PFF.

There’s clearly something brewing here with Tonga, and it started back in the summer when Vrabel named him one of the team’s offseason award winners. He’s been on the field for less than half of the team’s defensive snaps on the season, but saw a season-high 28 against the Bills last week and looks firmly ahead of both Cory Durden and Joshua Farmer in the defensive line rotation.

The Patriots entered 2025 with some serious question marks on the defensive interior, from Barmore’s lingering health issues, to Williams’s chops as a true three-down player, to the team’s decision to cut ties with veteran Davon Godchaux in a trade with the Saints.

There's no arguing with the results. New England’s defensive line group has emerged as one of the true backbones of the team, and Tonga’s presence has been a massive reason why.

Ryan O'Leary

Ryan O'Leary

Ryan O'Leary has been covering the Patriots since 2020, when he began hosting the Patriots Wire Podcast for USA TODAY Sports Media Group. He's been a contributing writer and assistant editor for Musket Fire since August 2025. Ryan studied journalism at the University of New Hampshire and started his career covering local high school and college sports. He then transitioned out of the newsroom and into the live events space as a content manager and emcee for USA TODAY Ventures. Ryan's work has been featured on USA TODAY Sports and The Sporting News. He's also the current site expert for FanSided's Dawg Pound Daily, covering the Cleveland Browns (a role that has his Ohioan wife fired up). His NFL fandom has and always will lie with the Patriots, though, the team that's had him hooked since Desmond Howard and the Packers left him sobbing on the couch as a 10-year-old after Super Bowl XXXI. Thankfully, that pain subsided after consuming every snap of the greatest dynasty in professional sports history.