Glentoran's title ambitions suffered another blow as they were held to a goalless draw by ten-man Glenavon.
The Glens struggled after a bright start when Terry Devlin was twice denied by Rory Brown, and even when Jordan Stewart was dismissed late on they failed to find a breakthrough.
It was imperative Glentoran got themselves back to winning ways again after Saturday's defeat to Cliftonville, but they now 16 points off league leaders Larne with two games in hand.
