Obafemi Martins is in doubt for Newcastle United's clash with Tottenham this weekend.
"Oba has not trained this week," Shearer confirmed to nufcTV.
"But we haven't ruled him out and we'll continue to monitor his fitness before making a late decision."
Shearer also commented on the fact that Martins withdrew himself from last week's clash, saying he was disappointed but that the striker had done nothing wrong.
"The whole thing was forgotten about afterwards," he added.
"Oba never broke any rules or curfew and all I was disappointed with was the timing of things.
"But I've spoken to him and everything is fine and we're hoping he'll be fit as soon as possible."