McNeill was sent down to AHL Rockford on Wednesday, Mark Lazerus of the Chicago Sun-Times reports.
McNeill got his first taste of NHL action on Tuesday night, recording three hits in 12:44 of ice time in a 5-0 loss. He has nine goals and 10 assists in 29 AHL games this season. The Hawks; 2011 first-round pick has shown potential in the AHL and should get his chance eventually in the big leagues, but the Blackhawks are particularly deep down the middle right now.