Over the past week, two teams have spoken to the Detroit Lions about potentially trading for Calvin Johnson's rights before Tuesday's NFL trade deadline, league sources told ESPN.

Figuring they had nothing to lose, the Lions told teams to reach out to Johnson to gauge his reaction, but so far it has been non-committal at best, diminishing any hopes for a deal, sources said.

Johnson, 32, has not played since the 2015 season and would have to be willing to play for any team that traded for his rights. There remains doubt that Johnson even would be willing to return at this time.