GT Pitcher Marquis Grissom Jr. On His Impressive Outing
Marquis Grissom Jr. at Breakthrough Series camp
Pitcher Marquis Grissom Jr. by the numbers ahead of Knoxville Regional
The Greatest Active MLB Player from All 50 U.S. States
2020 RHP Marquis Grissom Jr. (GA), Georgia Tech Signee
Mount RushWAR Archives - Franchise Phenoms
2010 Player Bios (pages 9-67) by Toledo Mud Hens - Issuu
GT Pitcher Marquis Grissom Jr. On His Impressive Outing
A year in review: Top sports headlines from 2018
Washington Nationals minor league players - Wikipedia
2018 CLE Media Guide, PDF, Cleveland Indians