Ian Rapoport of the NFL Network said the Seahawks had been discussing a deal involving Richardson going to the Seahawks in exchange for Kearse and draft considerations since mid-August. That's according to to ESPN's Adam Schefter.
Richardson was a Pro Bowl pick in 2014.More news: Was pregnant Savanna Greywind murdered for her baby?
Richardson's spot on the defensive line could be filled by Kony Ealy, whom the Jets claimed off waivers this week and who played well in the preseason finale against the Eagles on Thursday night.
Richardson, a first round pick in 2013 out of Missouri, recorded 62 combined tackles in 2016 and 18 sacks over four seasons with the Jets. He's faced drug charges and suspensions dating back to college, and his 2015 incident was handled lightly by the National Football League in many opinions.More news: 'Game of Thrones': Is Bran Secretly the Night King?
Kearse is set to make $2.2 million in base salary in 2017 as part of the three-year, $13.5 million deal he signed in March 2016.
Kearse, a five-year veteran, had 41 catches for 510 yards last season with the Seahawks, but just one touchdown.
The Jets have Kearse under contract for two years with the option to buy him out after this season. Michael Bennett and Cliff Avril have the defensive end position locked down, and Ahtyba Rubin and Jarran Reed are solid at defensive tackle. I want to get out there and start on defense.More news: Despite political hurdles, Trump defiant on Mexico wall
Starting alongside K.J Wright and Bobby Wagner as an outside linebacker is the likeliest scenario. He was New York's first-round selection in 2013. Richardson is making a guaranteed $8.1 million, and the Jets have been trying to trade him since last October because they anticipate losing him as a free agent after this season.