Both players have agreed to one-year, two-way deals.
Poganski, 24, was drafted by the Blues in the fourth round (No. 110 overall) at the 2014 NHL Draft. Poganski has spent the last two seasons with the AHL's San Antonio Rampage. In 2019-20, he posted 10 goals and 20 assists (30 points) in 56 games.
Reinke, 24, has also played the last two seasons with the Rampage. Last season, the defenseman recorded five goals and 17 assists (22 points) in 46 games.