The ban came after the fact from the MLS disciplinary committee. Moore was yellow-carded on the 20th-minute play that saw him lose the ball and then scythe down Sebastian Jaime from behind.
Moore was also fined for what was deemed serious foul play that endangered the safety of an opponent.
Toronto had fullback Justin Morrow sent off against Columbus in the second week of the season. Toronto appealed the red card but lost.
Moore, who got the start Sunday because striker Jozy Altidore was away with the U.S. national team, will miss Saturday's game in Chicago.