The NFL's free agency 'tampering period' is underway and reports have surfaced regarding which players could be on the Bears' radar.

In addition to interest in free agent quarterback Mike Glennon, the Bears are expected to pursue one of the league's most explosive kick returners.

According to SiriusXM NFL Radio's Alex Marvez, the Bears will make a push to sign former Minnesota Vikings wide receiver Cordarrelle Patterson.

The 25-year-old Patterson was a first-round pick out of Tennessee in the 2013 NFL Draft by the Vikings, but never quite lived up to his pre-draft billing after an impressive rookie season.

Patterson, a two-time Pro Bowl and two-time First-Team All Pro returner, has brought back 134 kicks for 4,075 yards with a 30.4 average and five touchdowns.

In four seasons with the Vikings, Patterson has registered 132 receptions for 1,316 yards and seven touchdowns. Patterson also has 31 carries for 333 yards and four touchdowns.

The Bears can officially begin signing unrestricted free agents when the new league year begins on Thursday, March 9 at 3 p.m.