This starts a 21-day window for the two to practice during which they have to be activated to the roster.
St. Brown should provide more depth to Green Bay’s receiving corps which has been hit with injuries, while Martin was pushing to start as a rookie before going down.
St. Brown, 24, is a former sixth-round pick of the Packers back in 2018. He’s currently in the third year of his four-year, $2.6 million contract.
In 2018, St. Brown appeared in 12 games for the Packers and caught 21 passes for 238 yards receiving and no touchdowns. He also rushed for five yards on one carry.