Ronnie Moore was a frustrated manager after the Millers missed several chances in the 2-1 defeat at Accrington Stanley.
After going behind to a first half strike by Michael Symes the Millers levelled after half time through a Josh Walker goal. With the Millers pushing forward looking for a winner they were caught on the counter when Jimmy Ryan slid home the winner from 16 yards.
"The way we came out of the blocks in the first half was unacceptable," said Ronnie.
"I thought we were lucky to come in at half time at 1-0 because we didn't get started. To be fair in the second half we got about them but it was just disappointing that we didn't take the opportunities. We raised our game and upped the tempo and had enough chances to win but you cannot defend the way we did. They haven't got a left footed player in the team but we showed him inside on his right foot, he crossed the ball and they score."
There was a controversial moment in the second half when Craig McAllister was denied a goal for offside, but the ball was given to the Millers via an Accrington defender.
"I genuinely thought that the referee was going to overrule the linesman," added Ronnie.
"I haven't spoke to him about the decision. The fourth official said something about them both being offside in the first phase of play. That isn't an excuse we had the opportunities to take the lead, and if we take the lead we win the game."
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