Let the dealing begin — if mostly unofficial.

The NFL's “legal tampering period” in free agency began Monday with a slew of deals even as many teams released veterans to clear salary cap space before the league's business year begins Wednesday.

Most aggressive was the worst team in the league. Jacksonville, which has the first overall selection in the draft next month for the second straight year, got busy early.

The Jaguars agreed to sign Arizona receiver Christian Kirk, Washington guard Brandon Scherff, Atlanta linebacker Foyesade Oluokun, New York Jets defensive tackle Folorunso “Foley” Fatukasi, New York Giants tight end Evan Engram and Las Vegas receiver Zay Jones, according to a person familiar with the negotiations.

Also agreeing to move on were New England cornerback J.C. Jackson to the Los Angeles Chargers; linebacker Haason Reddick from Carolina to Philadelphia; guard Laken Tomlinson from San Francisco to the New York Jets; tight end C.J. Uzomah from Cincinnati to the Jets; running back Chase Edmonds from Arizona to Miami; offensive lineman Ted Karras from New England to Cincinnati and offensive lineman Alex Cappa from Tampa Bay to Cincinnati; offensive lineman Rodger Saffold from Tennessee to Buffalo; quarterback Mitchell Trubisky from Buffalo to Pittsburgh; and safety Xavier Woods from Minnesota to Carolina — with many more switches to come.

Staying put are Tampa Bay center Ryan Jensen, a key protector of the no-longer-retired Tom Brady; RB James Conner and QB Colt McCoy with the Cardinals; safeties Devin McCourty with the Patriots and Quandre Diggs with the Seahawks, who also retained tight end Will Dissly; All-Pro kick returner Braxton Berrios with the Jets.