Tony Mowbray wasn't happy with his team's performance but praised the spirit and determination shown to earn a point at Pride Park on Tuesday evening.
Rovers were under the cosh for the majority of the clash against Frank Lampard's Derby side, but were resilient in their defensive duties to keep the Rams at bay and earn a fourth clean sheet of the campaign.
Mason Mount came closest for the hosts when he crashed a shot against the upright but Rovers held out to take a surprising point back to East Lancashire with them.
“We worked really hard to get a point tonight against a really, really good team. Huge credit to Frank and his coaching team for putting together a really intense side," Mowbray began.
“They moved the ball around well and asked lots of questions of us. We have talked about the spirit of our team and I think it was evident tonight.
“Derby showed intensity, which was to be expected after they were stung by defeat at the weekend.
"We had a really good chance and I’d have had Bradley Dack to put that away nine times out of 10. Had we won 1-0 it would have been a huge injustice because Derby played very well tonight."
Mowbray was without key man Charlie Mulgrew, who was left out of the squad altogether due to a bug picked up earlier in the week, and the boss was pleased with the defensive unit's work without the Scotland international.
“Our defenders were very good and that was without our skipper Charlie Mulgrew who has picked up a bit of a bug.
“Sometimes you feel okay but it makes you pretty weak. I’m not pleased with the performance but you have to give huge credit to the team for hanging in there and showing spirit."