Doncaster Rovers boss Darren Ferguson felt refereeing decisions went against his side in their 1-0 defeat to Blackpool.
Blackpool were awarded two penalties in the final five minutes with Mark Cullen striking the inside of the post with the first after Mathieu Baudry had handled in the area.
But Jordan Flores struck the decisive blow after Will Aimson had been brought down in the box by Craig Alcock, although Ferguson claimed the foul took place well outside.
Rovers had earlier been reduced to ten men after Matty Blair received the second of his two bookings shortly after half time.
"I've just seen the penalties back because you're never too sure when it's live," Ferguson said.
"The first one, it possibly hit his arm. I can see why he's given it but I still think it's dubious. The second one is outside the box, there's no question about it.
"Then we have a clear one. The defender has actually put his arm on the ball.
"We feel we were a little hard done by but we have to take our medicine and move on.
"The game changes on the red card. In the second half we felt as though we'd go on and win the game because first half. I thought we were the dominant team in the first half and looked fairly solid.
"They had one breakaway through Potts but I thought we were comfortable.
"With ten men we had to adjust but even then, I didn't think we were under too much pressure. There wasn't a massive threat.
"I thought we'd see it through but unfortunately the game got affected by some of the referee's decisions. That's what's costs us the game"