Jahmai Mashack will miss Sunday’s matchup against the Bucks due to a concussion, sidelining him for at least one game as he navigates the league’s concussion protocol. His absence, following a 14-minute game against the Raptors, is set to increase playing opportunities for Dariq Whitehead, Lucas Williamson, and Adama Bal, as the Grizzlies contend with a series of injuries.