Wall, the NBA's top draft choice and Wizards' scoring leader, was injured in Saturday's loss to the Chicago Bulls.
Gilbert Arenas is expected to make his first start of the season in place of Wall, the Wizards said on their website (www.nba.com/wizards).
Chinese reserve forward Yi Jianlian will also miss the game with a right knee bruise, the team said.
(Reporting by Gene Cherry in Raleigh, North Carolina. Editing by Frank Pingue)