Leatherneck Nation

You can see the list of invited players (so far) here: https://www.risendraft.com/asg-tracker

From WIU:
WR Dennis Houston - College Gridiron Showcase
TE Mason Sikes - College Gridiron Showcase

From the MVFC:
QB Chris Oladokun (SDSU) - NFLPA Collegiate Bowl, and College Gridiron Showcase
RB Jaleel McLaughlin (YSU) - College Gridiron Showcase
WR Avante Cox (SIU) - College Gridiron Showcase
TE Zach Larkin (INSU) - College Gridiron Showcase
OL Isaiah Edwards (INSU) - College Gridiron Showcase
OL Trevor Penning (UNI) - Senior Bowl
OL Matt Waletzko (UND) - College Gridiron Showcase
DL Gavin Dineen (INSU) - College Gridiron Showcase
DL Quintin Seguin (UND) - Cajun Allstar Bowl
Edge D Brayden Thomas (NDSU) - College Gridiron Showcase
LB Michael Griffin II (SDSU) - College Gridiron Showcase
LB Inoke Moala (INSU) - College Gridiron Showcase
LB Bryce Notree (SIU) - Hula Bowl
LB Jaxson Turner (UND) - College Gridiron Showcase
DB Jordan Canady (UND) - College Gridiron Showcase
DB JJ Henderson (INSU) - College Gridiron Showcase
DB Zaire Jones (YSU) - College Gridiron Showcase

Also...
RB Clint Ratkovich (NIU) - East-West Shrine Bowl, Hula Bowl

Just FYI, the College Gridiron Showcase isn't really a "game". They started as a post-season all-star game in 2015, but switched in 2016 to a drill showcase and "controlled scrimmage". They also have educational seminars for athletes involving things like financial management and marketing. It's held January 8-12, 2022.