Anthony Mantha is heading back to the AHL.
The Detroit Red Wings have assigned the forward prospect to Grand Rapids, where he'll begin the season with the Griffins.
On Monday, head coach Jeff Blashill said only one of Mantha and Andreas Athanasiou would make the opening-night roster, meaning the latter has secured his spot.
Mantha, 21, was selected with the 20th pick of the 2013 NHL Draft, and came highly touted after scoring at will during his junior-hockey days with Val-d'Or of the QMJHL.
He played 60 games for the Griffins last season, recording 21 goals and 24 assists. In 10 games with the Red Wings, Mantha has scored two goals, adding one assist.
Athanasiou was a fourth-round pick in 2012, and scored nine goals in 37 games while receiving limited ice time with Detroit last season.
