Manager reacts to Burnley defeat
Lions boss Ian Holloway believed his team were beaten by a Burnley team 'full of confidence' at Turf Moor on Saturday.
Martyn Woolford had given Millwall the lead, but The Clarets, unbeaten at home all season, turned the game on its head with strikes from Danny Ings (2) and Dean Marney.
And Ollie, speaking afterwards, said Sean Dyche's men were fair winners.
"It was an uphill battle after their second goal," he said. "We had decent shape and structure but they are a good, confident side.
"We got a goal but I'm annoyed they got one back, and so quickly. It was too easy for them, and up to that point we had done quite well.
"I was happy with some bits, and unhappy with some bits. In the end I thought they beat us fair and square."
The Lions head to Huish Park on Tuesday for a crucial game with relegation rivals Yeovil Town, and Ollie insists that upcoming matches with The Glovers, Bolton and Barnsley are huge.
"Our next three games are big ones for us," he said. "They are teams around us and we could do with taking some points off of them. If we can, then everything will look a whole lot better than it does at the moment."