Glenn Roeder is set to leave it as late as possible before making a decision on whether or not to name the duo in his starting line-up.
Roeder: "Kieron's hamstring was a bit tight on Sunday, but that was only natural and what we expected. He plays the game at such a high tempo that it was impossible for him not to be feeling it after Saturday.
"Don't forget he has been out for five and a half months and Saturday was the first time he has actually started a game since the end of August. It's no secret that Kieron was not even going to start Saturday's game with Southampton, but this all changed when Alan Shearer dropped out on the lunch-time.
"And in my own mind I did not expect Kieron to start all our matches this week against Southampton, Charlton Athletic and Everton on Saturday night. He will be able to do this in the next couple of weeks, but not at this moment in time and whatever turns out to be the case, we will not take any chances with either Alan Shearer or Kieron Dyer. Because of the season we have had every game is a huge match for us, starting with Charlton Athletic tomorrow night."