"Robbie has been struggling with a nerve problem at the top of his hamstring," Clough told the Derby Telegraph. "It has been building up and we just thought he was struggling a bit. That wasn't really him out there.
"He has been playing with a bit of discomfort in the last few weeks. With a good week this week, he should be fit for Blackpool."
Savage echoed the sentiments of his manager, saying: "I will play through niggles. The reason I have played so many games is that I have played through niggles.
"But there are no excuses for Saturday, my performance was not good enough."