TAMPA, Fla. — Armed with more than $66 million in salary-cap space and determined to make quarterback Jameis Winston and an improved offense even more productive, the Tampa Bay Buccaneers didn’t settle on the first day of NFL agency for simply adding a much-needed No. 2 receiver.

Instead, General Manager Jason Licht and Coach Dirk Koetter sought and landed DeSean Jackson, a lead receiver for most of his nine-year career, to pair with first-time Pro Bowl selection Mike Evans.

Jackson spent the past three seasons with Washington, and at age 30 is coming off leading the league in average yards per catch.

In addition to supplying Winston with a deep threat, Jackson is the type of receiver the Bucs lacked: a speedy, game breaker capable of turning short completions into big gainers.

49ERS: San Francisco agreed to deals with seven free agents.

The Niners reached a two-year deal with quarterback Brian Hoyer, a five-year deal with receiver Pierre Garcon, a five-year deal with linebacker Malcolm Smith, a four-year deal with fullback Kyle Juszczyk, two-year deals with kicker Robbie Gould and receiver Marquise Goodwin, and a one-year contract with tight end Logan Paulsen.

JETS: New York re-signed linebacker and special teams ace Josh Martin to a two-year contract worth $4.3 million.

Martin, signed in 2015 off Indianapolis’ practice squad, led the Jets last season with 14 special- teams tackles.

BROWNS: Cleveland agreed to terms with free-agent wide receiver Kenny Britt on a four-year, $32.5 million contract.

Britt, 28, had a career-best 68 catches for 1,002 yards and five touchdowns last season for Los Angeles.

COLTS: Former New England linebacker Barkevious Mingo agreed to terms on a one-year contract with Indianapolis.

Mingo’s deal is worth $2.5 million, his agent confirmed.

 Indianapolis signed former Minnesota punter Jeff Locke to a two-year contract.

STEELERS: Pittsburgh is holding on to reserve quarterback Landry Jones.

The team re-signed Jones to a two-year deal that will keep him as the primary backup behind Ben Roethlisberger.

WASHINGTON: The team signed safety D.J. Swearinger, a 25-year-old who spent the past two seasons with Arizona.

Safety was one of Washington’s biggest needs after trying multiple pieces there last year, including veteran Donte Whitner. Swearinger, a 2013 second-round pick by Houston, thanked the Cardinals for giving him a chance in an Instagram post and Washington on Twitter for giving him this opportunity.

FALCONS: Atlanta re-signed tight end Levine Toilolo and linebacker LaRoy Reynolds, who were unrestricted free agents.

The Falcons also released defensive end Tyson Jackson and confirmed signing free-agent defensive end Jack Crawford from Dallas.

RAMS: Los Angeles addressed its two biggest needs by agreeing to terms with offensive tackle Andrew Whitworth and receiver Robert Woods.

Whitworth got a three-year deal to leave Cincinnati, and Woods got a five-year deal after playing with Buffalo.

JAGUARS: Jacksonville agreed to terms on a five-year, $67.5 million contract with Houston cornerback A.J. Bouye.

RAVENS: Baltimore reached agreement with free-agent safety Tony Jefferson and running back Danny Woodhead, a former member of the Patriots.

 Baltimore agreed to terms with perhaps the best defensive tackle available, Brandon Williams, who returns after four solid seasons with the Ravens.

BILLS: Buffalo began addressing its needs at safety by signing free agents Micah Hyde and Jordan Poyer.

Hyde agreed to sign a five-year deal worth about $30 million, with about $14 million in guarantees.

PANTHERS: Carolina agreed to terms with unrestricted free-agent left tackle Matt Kalil from Minnesota on a five-year deal worth $55.5 million.

EAGLES: Philadelphia agreed to terms with Chicago wide receiver Alshon Jeffery on a one-year contract.