The Los Angeles Chargers bolstered their offensive line, while the Tennessee Titans secondary took a major hit in free agency.

With team-building season officially underway, PFF takes a look at the 250 best players available in the 2021 NFL free agency class.

PFF data scientist Timo Riske looks at how fast the average NFL player ages and how it varies through different positions.

2021 NFL free agency kicked off with a bang, and while some teams stayed dormant, others attacked with reckless abandon. Here is how each of the league's 32 franchises fared ahead of the 2021 NFL Draft.

With the biggest wave of signings now behind us, it’s time to readdress all 32 teams’ biggest needs as they approach the 2021 NFL Draft.

PFF looks at each position and highlights the most overrated and underrated free-agency signings so far. Cleveland's move for John Johnson III and Troy Hill comes out on top, while the Bengals' decision to sign Trey Hendrickson comes under scrutiny.

PFF's Ben Linsey breaks down why free agent edge defenders Jadeveon Clowney and Melvin Ingram might end up being two of the best values of 2021 NFL free agency.

Players such as Kansas City Chiefs wide receiver Tyreek Hill have forced defenses to adapt to speediness from an inside alignment.

Mike Renner mocks the first three rounds of the 2021 NFL Draft, sending Zach Wilson to the Jets and Justin Fields to the San Francisco 49ers. The Washington Football Team, Chicago Bears and Pittsburgh Steelers also target QBs on Day 2.

Kenny Golladay was PFF's No. 1-ranked free-agent receiver after franchise tags were handed out.

The Washington Football Team attacked free agency by signing William Jackson III, who has extensive experience in man coverage schemes.

PFF's Jarad Evans breaks down the fantasy football implications of the Miami Dolphins signing wide receiver Will Fuller V in 2021 NFL free agency.

PFF gives you everything you need to know ahead of the 2021 NFL free agency period.

With the 2021 NFL Draft just over a month away, PFF's Kevin Cole looks at WR Tre Walker, comparing him to prospects in prior years and picking out the most similar comps with a clearly delineated and quantifiable method.

PFF's Timo Riske looks back at the first wave of 2021 NFL free agency and details his favorite and least favorite moves so far.

The more the New York Jets fill in gaps through free agency while using the draft to build out their roster, the better off the franchise will be..

From the New York Jets' improved offseason strategy to Joe Burrow still waiting for offensive line help, here are the early winners and losers of 2021 NFL free agency.

With NFL free agency officially kicking off Wednesday, here are eight moves for eight different teams to bolster their respective rosters and outlooks.