Pushor fired home his first of the season in his first game after missing the last 23 due to an injury for Syracuse (15-24-1-5).
Alexandre Picard scored on a pass from behind the Manitoba net. The shot beat rookie goalie Julien Ellis high glove side. Ellis made 30 saves.
Manitoba (22-15-6-4) squandered seven power play opportunities during regulation and has not scored with the man advantage in 17 chances over its last three games.
It was the third shutout of the season for Popperle.