Free agent wide receiver Kenbrell Thompkins visited the Jets today, a source tells Ian Rapoport of NFL.com (on Twitter). Thompkins spent time with the Jets in 2015 and was slated to return to the team in 2016 before suffering a season-ending injury. 
Thompkins is perhaps best known for his time with the Patriots. In 2013, he caught 32 of the 69 passes sent in his direction for 466 yards and four scores. In the next season, he split time with the Patriots and Raiders and didn’t have quite the same level of success (21 catches, 262 yards). His 2015 season with the Jets saw him catch 17 passes for 165 yards, which was enough to convince the team to give him a restricted free agent tender.
The Jets made a move at wide receiver earlier this week when they waived/injured wide receiver Devin Smith and re-signed Deshon Foxx. The Jets have presently have 13 receivers on the 90-man roster, including Eric Decker, Quincy Enunwa, free agent pickup Quinton Patton, and 2017 draft picks ArDarius Stewart and Chad Hansen.