Rotherham manager Ronnie Moore protested at a linesman's decision that handed Bradford a dramatic stoppage-time winner at Valley Parade.
The match had moved into the first of the three minutes added on for stoppages when Bradford's on-loan midfield player from Norwich, substitute Tom Adeyemi, unleashed a superb 25-yard shot which rebounded off the underside of the crossbar and back into play.
However, the linesman ruled that the ball had crossed the line - a decision that led to protests from the Rotherham players, and Moore said: "I cannot believe it. How could he possibly see the ball has gone over the line? It was a massive decision."
He added: "In the second half, we steamrollered them and I could only see us winning the match. Bradford were more than happy to have a draw and to have the match snatched off our players by the linesman was hard to take.
"I have spoken to three of the Bradford players and they all said it was not a goal but the linesman has ruled that the ball has crossed the line.
"I felt for the referee. He didn't think the ball had gone in, but he has to go with his linesman. Every one of my players did not think it was a goal and three of their players as well - they can't all be wrong.
"It is just frustrating. The effort and commitment was there from my players but a bit of luck has gone against us. We have worked very hard and to lose on a controversial decision like that is heartbreaking."
Meanwhile, Bradford's interim manager Peter Jackson celebrated his first win since taking over from Peter Taylor.
Bradford lost their first match under Jackson 2-0 at Gillingham on Saturday but he marked his home debut with a win.
"I couldn't see our winning goal from the dugout. It doesn't matter - it just says Bradford City 2 Rotherham United 1," said Jackson. "It has been an unbelievable week for me since being invited back to the club. I think you can see what it means to me and the fans were terrific."
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