On-loan Stoke striker Sidibe made a surprise return to start Rovers' League One match at Yeovil last weekend but pulled up shortly before half-time during the 1-0 defeat.
"We're hoping he's going to be okay," Prenton Park boss Moore said. "We were very surprised because it looked like he was going to be out for a fortnight.
"He responded to treatment really well and asked if he could come down with us on Friday, just see what it was like and leave it until the last minute.
"He trained on Saturday morning and felt really good. It's just unfortunate for us that it did tighten up a little bit so we don't really know about that. It's one of them that might be okay in a couple of days.
"I think the worst scenario, it's not a bad one, is 10 days or two weeks."
When up to full fitness, Moore is confident Sidibe can provide the physical presence he feels Tranmere have lacked at times since Jake Cassidy's return to parent club Wolves.
"He's had 10 games at Championship-level this season for Sheffield Wednesday," he added.
"He's fit, he's mobile - him and Jean-Louis Akpa Akpro against Colchester were running them ragged.
"There could be a nice little understanding there. We've just got to hope that he stays fit. If he stays fit then them two are as good as anybody in this league."
