The Bruins have already set a franchise record with the number of players that have made their NHL debuts this season and they may have yet another one in Pittsburgh on Wednesday night.

The Bruins called up 22-year-old Charlestown native Matt Grzelcyk for the first time in his career and will be carrying eight defensemen when they roll into the CONSOL Energy Center on Wednesday. Matt Beleskey (knee) was placed on long term injured reserve to make room for Grzelcyk on the NHL roster. 

According to reports out of Pittsburgh, Grzelcyk was skating with Colin Miller as a third pairing Wednesday morning with both Torey Krug and Adam McQuaid missing.

Grzelcyk has a goal and 12 points, eight penalty minutes and a plus-12 rating in 25 games for Providence this season and has shown the puck-moving skills and offensive creativity the B’s first liked when they drafted him as a third-round pick in 2012.

Grzelcyk served as a captain in each of his last two seasons at BU prior to signing with the Bruins last spring, and over his four-year collegiate career the 5-foot-9, 174-pound blueliner appeared in 124 games, tallying 26 goals and 68 assists for 94 points.

Beleskey suffered a right knee injury in Boston’s Dec. 3 win over the Buffalo Sabres and is expected to miss six weeks. He's sported a pretty healthy brace when he’s been spotted recently at TD Garden.