Manager Ollie gives his post-match reaction
Millwall boss Ian Holloway said his side didn't look as energetic as they had done in recent weeks in Saturday's 1-0 defeat to Rotherham.
Midfielder Ben Pringle slotted Paul Taylor's cross home to give the visitors a second-half lead and The Millers held on to secure their first away victory of the season.
For Millwall, though, it was a first defeat in 13 games, but manager Ollie was remaining upbeat after the final whistle.
"We shouldn't forget how far we've come in a short space of time," he said. "But I thought a few of our more creative players didn't look quite as bright as they had done before.
"There was maybe a bit of tiredness after the game on Tuesday so we've got to look at a few things for the game against Southampton.
"We knew how good Rotherham would be and I have to give credit to Steve Evans and his team. They're used to winning and saw the game out.
"My disappointment is with the fact that we've had 60 per cent possession and only created one shot on target. Rotherham have come to our ground and made more chances, which is why they're going home with the points.
"It was a poor goal to concede from my point of view. They've taken a short throw so we had to defend the box, but we let them get a cross in which they have scored from.
"At the same time we've got to make more things happen going forward. Unfortunately we couldn't quite get behind them as much as what we would have liked but that's life."