Cousins, who will receive $28 million per season, would become the highest-paid quarterback in the league, topping the $27.5 million annually that Jimmy Garoppolo will pocket from the San Francisco 49ers.
"No final decisions have been made," Cousins' agent Mike McCartney told ESPN on Tuesday. "The plan is to visit Minnesota first. That's all we can say right now."
Cousins, who has played two seasons for the Redskins on a franchise tag, topped the 4,000-yard mark for the third straight year in 2017. He finished with 4,093 yards passing, with 27 touchdowns and 13 interceptions.
--Quarterback Case Keenum agreed to a deal with the Denver Broncos, multiple outlets reported. Mike Klis of 9NEWS reported that the contract is expected to be a two-year deal for at least $36 million.
Keenum posted career highs in completions (325), attempts (481), completion percentage (67.6), passing yards (3,547) and touchdowns (22) in 2017 for the Minnesota Vikings.
--The Broncos exercised the contract option on wide receiver Demaryius Thomas.
The move triggers the final two years on Thomas' deal and guarantees him $12.5 million for 2018 -- his $8.5 million base salary and a $4 million bonus, the Denver Post reported, citing a source.
--Quarterback Sam Bradford is expected to sign with the Arizona Cardinals, multiple outlets reported.
Bradford's deal is for one year at $20 million, with $15 million guaranteed, according to ESPN's Adam Schefter. NFL Network Insider Ian Rapoport reported that Bradford has a second-year option at $20 million.
--The Cardinals released running back Adrian Peterson, the team announced.
--The New York Jets' quarterback situation became more complicated.
Early Tuesday, the Jets were finalizing a deal with former Minnesota Vikings quarterback Teddy Bridgewater, multiple media outlets reported.
But later Tuesday, several media outlets reported the Jets have reached an agreement to re-sign Josh McCown, New York's starting quarterback last season, to a one-year, $10 million deal.
McCown was told by the team that he will enter the 2018 season as the team's starter, according to a report from Newsday.
The Jets also own the No. 6 overall pick in the upcoming NFL Draft and might use that for a quarterback as well.
--The Jets agreed to terms with free-agent running back Isaiah Crowell, multiple outlets reported Tuesday.
The deal for Crowell, who spent his first four seasons with the Cleveland Browns, is for three years.
--The Green Bay Packers are moving in on a deal to sign tight end Jimmy Graham and releasing wideout Jordy Nelson.
Green Bay reportedly agreed to terms on a three-year contract with Graham, multiple media outlets reported Tuesday.
The Packers announced the release of the 32-year-old Nelson, who is coming off his least productive season since 2009, his second year in the NFL. He tumbled to 53 receptions for 482 yards in 2017 after amassing 97 catches for 1,257 yards and 14 TDs in 2016. However, Nelson wants to continue playing, ESPN reported.
--New Orleans Saints quarterback Drew Brees agreed to a two-year, $50 million contract, multiple outlets reported .
Brees will receive $27 million guaranteed in the first year, NFL Network's Tom Pelissero reported.
--Former Los Angeles Rams wide receiver Sammy Watkins will sign a three-year contract with the Kansas City Chiefs when free agency opens on Wednesday, multiple outlets reported.
The deal is for $48 million and includes $30 million guaranteed, per reports.
The Chiefs were not done, however, as they also are expected to sign free-agent linebacker Anthony Hitchens, multiple outlets reported.
--The Tennessee Titans are expected to sign cornerback Malcolm Butler to a five-year contract worth $61 million, NFL Network Insider Ian Rapoport reported Tuesday.
More than $30 million will be guaranteed for Butler, who had two memorable Super Bowl moments while with the New England Patriots.
Butler made a game-winning interception in the closing seconds of the victory over the Seattle Seahawks in Super Bowl XLIX following the 2014 season.
Butler was benched for all of Super Bowl LII this past season despite starting 15 regular-season games and both previous playoff games.
--The Philadelphia Eagles released tight end Brent Celek, the team announced.
Celek was the longest tenured player on the Eagles, who cleared $4 million from their salary cap with the move.
--The Eagles signed linebacker Corey Nelson to a one-year contract and plan to sign defensive tackle Haloti Ngata to a one-year deal, multiple media outlets reported.
--The Chicago Bears are expected to add two free-agent wide receivers.
Allen Robinson will sign a three-year, $42 million deal with the Bears, multiple outlets reported. The deal includes $25 million guaranteed, per ESPN's Adam Schefter.
The Bears also are expected to sign wide receiver Taylor Gabriel to a four-year contract.
--Tight end Trey Burton is expected to sign a four-year contract with the Bears, multiple outlets reported.
Burton etched his name into Philadelphia lore last month for his part in the "Philly Special" during Super Bowl LII. The 26-year-old threw a touchdown pass to quarterback Nick Foles following a reverse handoff to give the Eagles a 22-12 lead over the New England Patriots late in the second quarter.
--Wide receiver Paul Richardson is expected to sign a five-year, $40 million deal with the Washington Redskins, with $20 million in guarantees, multiple outlets reported.
The 25-year-old is expected to join Josh Doctson and Jamison Crowder in a new-look offense for the Redskins, who will feature Alex Smith at quarterback.
--Andrew Norwell is slated to become the NFL's highest-paid guard as he intends to sign a five-year, $66.5 million deal with the Jacksonville Jaguars, multiple outlets reported.
--Free-agent cornerback Aaron Colvin is expected to sign a four-year contract with the Houston Texans, multiple media outlets reported.
Colvin, 26, played in all 16 games for the Jacksonville Jaguars last year, and he started five of them.
--The Jaguars are keeping wide receiver Marqise Lee in the fold with a new four-year contract and also reached agreement with free-agent wideout Donte Moncrief, multiple outlets reported.
Lee's contract is worth $38 million with $18 million guaranteed, according to both the NFL Network and ESPN. No terms were announced for Moncrief, who spent the past four seasons with AFC South rival Indianapolis.
The Jaguars also signed second-year wide receiver Shane Wynn, the team announced.
--The New York Giants are finalizing a deal with free-agent running back Jonathan Stewart, multiple outlets reported.
Stewart was released by the Carolina Panthers at the end of last month, ending his 10-year tenure with the team.
--The Baltimore Ravens released versatile running back Danny Woodhead, the team announced, and the Ravens also declined to pick up the option on the contract of starting right tackle Austin Howard, ESPN reported.
--Jaguars linebacker Paul Posluszny announced his retirement after 11 NFL seasons, the team announced.
Posluszny, a five-time defensive captain with the Jaguars, registered 973 tackles to reside second in franchise history behind only Daryl Smith (1,089).