The forward has been out of action with a hamstring problem and while the side are keen to have him back quickly, Simpson has urged caution ahead of an important game against Norwich this weekend.
“Chris is still working one-to-one with the fitness coach. There is still a little bit of a bleed in the hamstring so this weekend may be a little bit too early for Chris,” said Simpson.
The recent injury to Darren Bent has increased the significance of Martin’s safe return to the first team and manager Steve McClaren is under pressure.
He’s under pressure because the side have suffered a blip in results through recent games with two defeats and a draw in their last three fixtures.
Simpson’s comments show that if Derby threw him into the side, there is a very good chance that his hamstring problem will get worse and he could potentially be kept out of action for the rest of the season.
“Getting these players fit isn't just a case of 'let's get them fit for the Norwich game'. We need to make sure they are fit for the run-in,” added Simpson.
Common sense seems as though it will prevail and the key thing for the Rams is that other players step up and fill the void until players come back into the squad.
Derby don’t have a bad squad of players, they have lost a couple of tight games and really should have held on for a win against Birmingham last weekend.
There’s still plenty to be optimistic about.