NFL free agency explained from salary cap and tampering to franchise and transition tags

FILE - Minnesota Vikings' Kirk Cousins throws during the first half of an NFL football game against the Detroit Lions Sunday, Dec. 11, 2022, in Detroit. Kirk Cousins, Chris Jones and Mike Evans are among the best players who will be available on the open market unless their teams use a franchise tag by March 5. They’ll be joined by running backs Derrick Henry, Saquon Barkley and Josh Jacobs, edge rushers Josh Allen, Brian Burns and Danielle Hunter and several other talented players.(Duane Burleson/AP)