Knighton was shown a red card in the 73rd minute of Sundays 2-1 loss at Chicago for denial of obvious goal scoring opportunity. He made two saves prior to being sent off.
Knighton took out David Accam at the edge of the 18-yard-box to earn his marching orders. He is suspended for the regular season finale and likely wont see the field again until 2017. Bobby Shuttleworth subbed into the match and is likely to start on Sunday against Montreal.