ESPNChicago.com reported in early August the Bears would continue to keep tabs on Tinoisamoa, a free agent who underwent an offseason procedure on his problematic knee.
The Chicago Tribune first reported about the upcoming workout.
An eight-year NFL veteran who spent 2009 and 2010 as a member of the Bears, Tinoisamoa started 10 regular season games last year at strongside linebacker and finished seventh on the team with 51 tackles. He spent his first six seasons in St. Louis, where the versatile Tinoisamoa recorded 100-plus tackles four separate times.
According to sources familiar with the situation, Tinoisamoa wanted to wait until his knee was 100 percent before he entertained the notion of re-entering the league. He did not want to rush back too soon and risk re-injuring the knee for a third consecutive year.
Although the organization remains high on incumbent starting strongside linebacker Nick Roach, Tinoisamoa's long-standing ties with Bears head coach Lovie Smith and linebackers coach Bob Babich made returning to Chicago a no-brainer, just as long as the linebacker checks out medically.
The Bears currently have only five linebackers on the 53-man roster.
Jeff Dickerson covers the Bears for ESPNChicago.com and ESPN 1000.