The Kansas City Chiefs’ 25-22 overtime victory against the San Francisco 49ers in Super Bowl LVIII on Sunday night ended the NFL’s 2023 season, leaving all 32 teams able to turn their full attention to preparing for the 2024 campaign.

That team building will include free agency, which starts with the NFL’s 2024 business year on March 13.

Any NFL player with at least four seasons of experience and an expiring contract will become a free agent at 3 p.m. CDT March 13 if he doesn’t sign a contract extension or his team doesn’t use its franchise tag on him before then.

The players headed toward unrestricted free agency at that time include 43 from Alabama high schools and colleges who were on NFL active rosters or reserve lists at the end of the 2023 regular season.

Those 43 players include former NFL rushing champions Derrick Henry of the Tennessee Titans and Josh Jacobs of the Las Vegas Raiders.

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But the free agent with Alabama football roots likely to land the largest contract in free agency is former Abbeville High School All-State wide receiver Josh Allen.

As an outside linebacker with the Jacksonville Jaguars in 2023, Allen recorded 17.5 sacks in his fifth NFL season.

The financial website spotrac.com estimated Allen’s market value as an unrestricted free agent at a five-year contract worth $119.932 million.

The players from Alabama high schools and colleges on NFL active rosters or reserve lists at the end of the 2023 regular season who are eligible to become unrestricted free agents at 3 p.m. March 13 include:

· Las Vegas Raiders running back Ameer Abdullah (Homewood)

· Pittsburgh Steelers defensive tackle Montravius Adams (Auburn)

· Pittsburgh Steelers linebacker Kwon Alexander (Oxford)

· Jacksonville Jaguars outside linebacker Josh Allen (Abbeville)

· Jacksonville Jaguars defensive tackle Angelo Blackson (Auburn)

· Indianapolis Colts cornerback Tony Brown (Alabama)

· Philadelphia Eagles linebacker Zach Cunningham (Pinson Valley)

· Tennessee Titans defensive tackle Marlon Davidson (Greenville, Auburn)

· Miami Dolphins defensive tackle Raekwon Davis (Alabama)

· Carolina Panthers linebacker Tae Davis (Oxford)

· Philadelphia Eagles offensive lineman Jack Driscoll (Auburn)

· Los Angeles Chargers tight end Gerald Everett (UAB/South Alabama)

· Washington Commanders running back Derrick Gore (Alabama)

· Miami Dolphins defensive lineman Da’Shawn Hand (Alabama)

· Buffalo Bills running back Damien Harris (Alabama)

· Indianapolis Colts safety Ronnie Harrison (Alabama)

· New York Giants center J.C. Hassenauer (Alabama)

· Tennessee Titans running back Derrick Henry (Alabama)

· Tennessee Titans offensive tackle Chris Hubbard (UAB)

· New York Jets defensive end Bryce Huff (St. Paul’s Episcopal)

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· Dallas Cowboys cornerback Noah Igbinoghene (Hewitt-Trussville, Auburn)

· Houston Texans safety Kareem Jackson (Alabama)

· Las Vegas Raiders running back Josh Jacobs (Alabama)

· New England Patriots linebacker Anfernee Jennings (Dadeville, Alabama)

· Philadelphia Eagles wide receiver Julio Jones (Foley, Alabama)

· New York Jets defensive end Carl Lawson (Auburn)

· Carolina Panthers outside linebacker Eku Leota (Auburn)

· Cincinnati Bengals quarterback AJ McCarron (St. Paul’s Episcopal, Alabama)

· New York Giants safety Xavier McKinney (Alabama)

· Chicago Bears wide receiver Darnell Mooney (Gadsden City)

· Philadelphia Eagles linebacker Nicholas Morrow (Huntsville)

· Washington Commanders safety Jeremy Reaves (South Alabama)

· Jacksonville Jaguars wide receiver Calvin Ridley (Alabama)

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· New York Giants defensive lineman A’Shawn Robinson (Alabama)

· Cincinnati Bengals tight end Irv Smith Jr. (Alabama)

· Jacksonville Jaguars safety Daniel Thomas (Lee-Montgomery, Auburn)

· Los Angeles Rams long snapper Carson Tinker (Alabama)

· Pittsburgh Steelers cornerback Levi Wallace (Alabama)

· Philadelphia Eagles wide receiver Quez Watkins (Athens)

· Cincinnati Bengals offensive tackle Jonah Williams (Alabama)

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· Los Angeles defensive tackle Nick Williams (Minor, Samford)

· New England Patriots linebacker Mack Wilson (Carver-Montgomery, Alabama)

· New Orleans Saints quarterback Jameis Winston (Hueytown)

Two other NFL players from Alabama high schools and colleges are eligible to become restricted free agents on March 13 – Seattle Seahawks cornerback Mike Jackson (Spain Park) and Kansas City Chiefs offensive tackle Prince Tega Wanogho (Edgewood Academy, Auburn).

A restricted free agent is a player with three NFL seasons and an expiring contract. Like unrestricted free agents, restricted free agents can negotiate with any interested teams, but their original teams can tender restricted free agents with qualifying offers from four tiers. All the tenders give the original teams the ability to match any contract offer before losing a player and some carry draft-pick compensation if a player signs elsewhere.

Yet another type of NFL free agent is the exclusive-rights free agent. An ERFA is a player with fewer than three seasons and an expiring contract. If his original team offers the ERFA a contract, he cannot negotiate with other teams.

The NFL’s pending exclusive-rights free agents include one with Alabama football roots – Carolina Panthers defensive tackle LaBryan Ray (James Clemens, Alabama).

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Mark Inabinett is a sports reporter for Alabama Media Group. Follow him on Twitter at @AMarkG1.