Shrewsbury and Brentford shared the spoils in a thrilling goalless draw.
Town striker Marvin Morgan twice fired wide, while Clayton Donaldson smacked his first-half effort against the post at the other end.
The hosts survived a penalty scare when Tony Craig was adjudged to have handled and the referee pointed to the spot, only to reverse the decision after consulting his assistant.
Paul Hayes then had the ball in the net for the Bees but it was ruled offside.
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Shrewsbury manager Graham Turner told BBC Radio Shropshire:
"It was rather strange for the referee to give a penalty and then change his mind. He was closer to the incident than the linesman.
"We're particularly annoyed with that. It was an incredible situation and was definitely a penalty. When your hands are above your head, it's got to be a penalty.
"We're bitterly disappointed that we didn't go away with three points."