Manager's post-match thoughtsIan Holloway said his side did everything but score as the 10-men of Doncaster defended resolutely to come away from The Den with a share of the spoils.
Abdoulaye Meite was given a straight red card for a foul on Stefan Maierhofer in the 43rd minute but Millwall, despite enjoying the vast share of possession and enjoying regular spells of pressure after that point, failed to break the deadlock against their relegation rivals.
"I actually thought the sending off was probably a little harsh," Ollie said. "It was maybe a yellow card at best but what the decision did was give Doncaster that siege mentality.
"They dropped deep and defended well, particularly when we put balls into the box. Credit to them for that.
"We had possession, created chances but just couldn't score. It's six games without defeat, though, and that's a good run at this stage of the season.
"The lads were a bit down in the dressing room so I've had to give them a kick up the back side. At times I thought we got a little bit obsessed about the result, and instead of re-focusing when a move broke down, we looked frustrated.
"I put (Mark) Beevers up front for the last 10 minutes but behind him we didn't quite keep the shape I wanted. That was my only frustration in the game because we threw absolutely everything at them."
Boss Ollie was full of praise once more for the home crowd, who urged their team on throughout.
"I feel a bit for the supporters because we are desperate to give them that home win," he said. "There were points in the game where we didn't quite manage ourselves right and, for whatever reason, it just doesn't seem to be going for us at The Den.
"The fans were absolutely superb again and the players are feeding off of that."
The Lions now head to Loftus Road to face QPR on Saturday, Ollie's former club, before returning to The Den to face Bournemouth in the final game of the season, with the battle to beat the drop delicately poised.
"It's been a while since I've been back to QPR and it's a game we're all looking forward to. We have won three away from home in a row, so why can't we make it four? A win there might be enough for us, you never know. And you don't know how crucial this point might actually turn out to be come the end of the season."