Reinke, 22, will report to St. Louis this week and is eligible to play in the regular season.
Reinke played 35 games with the Michigan Tech Huskies this season, posting three goals and 21 assists (24 points) to go along with a plus-8 rating and was named a WCHA Third Team All-Star. In 76 career collegiate games, the 5-foot-11, 182-pound Stillwater, MN native recorded 44 points (nine goals, 35 assists) and a plus-14 rating with the Huskies. He also helped the Huskies capture the WCHA Championship in two consecutive seasons (2016-17, 2017-18).
Stevens, a 21-year-old and a fifth-round draft pick (No. 125 overall) of the Blues in 2016, recently wrapped up his fourth season of NCAA hockey at Northeastern University. In 38 regular season games, Stevens shared fifth overall among NCAA players in goals (24) and added 18 assists (42 points) this season. The 6-foot-2 native of Sea Isle City, NJ, he served as the team's captain and was named Hockey East Player of the Week (Nov. 6) and a Hockey East Second Team All-Star this season. In 2015-16, Stevens guided Northeastern to the Hockey East Championship.
In his four-year college career, Stevens played in 132 games, totaling 57 goals, 61 assists (118 points) and a plus-32 rating to go along with 80 penalty minutes. Internationally, he represented Team USA at the 2013-14 U-18 World Junior Championships, helping the team capture a gold medal.
Stevens will report to St. Louis this week and is eligible to play in the regular season.
Poganski, 22, is a fourth-round pick of the Blues (No. 110 overall) in the 2014 NHL Draft. Poganski recently wrapped up his fourth season at the University of North Dakota, where he served as the team's captain during his senior season and posted 11 goals and nine assists (20 points) in 2017-18.
The 6-foot-2, 210-pound native of St. Cloud, MN recorded 37 goals and 47 assists (84 points) in 162 career games in the NCAA. He also guided North Dakota to the NCAA championship in 2015-16.
Poganski's two-year entry-level deal will begin with the 2018-19 season. He will report to the AHL's San Antonio Rampage on an amateur tryout this week.