Dennis Greene was left rueing the red card that never was as Boston United were beaten 4-1 by Solihull Moors.
With the Pilgrims 2-0 down they were awarded a penalty when Moors skipper Theo Streete clattered into Kaine Felix.
However, referee Josh Smith opted not to give the captain his marching orders, despite already booking him for an earlier foul on Jay Rollins.
Dayle Southwell tucked away the spot kick and Greene believes that had Streete seen red the outcome could have been different.
“We’ve got the penalty, it should have been a sending off but it wasn’t a sending off, the fellow’s already been yellow carded,” Greene said.
“Even if it’s not a booking it’s still a last man job. He could have gone anyway.
“Chasing the game and with 10 men we’d have been camped in their half, and at 2-1 we’d have had a chance.”
Darryl Knights put the away side 2-0 up, his second coming from Carl Piergianni’s uncharacteristic pass across the back line which set him free.
Jack Byrne and Akwasi Asante then added further goals as Boston pushed on for an equaliser.
“We’ve lost three points,” added Greene, whose side are yet to get off the mark in the National League North, following Saturday’s defeat at Stockport.
“The 4-1 scoreline doesn’t reflect the game as we’ve had to chase it late on.
“I thought the first half performance was better than on Saturday and it was end-to-end but we didn’t take our chances.
“In the second half we gifted them a goal with Pidge going square and then at 2-0 you’ve got a mountain to climb.”
Boston host Curzon Ashton on Saturday (KO 3pm).