David Wotherspoon picked up a knock in a bounce game with Falkirk this week.
But manager Callum Davidson confirmed the injury was nothing to do with his knee.
Wotherspoon was playing in the game in order to pick up more minutes ahead of his expected first team return after 10 months on the sidelines.
Perth boss Davidson said: “Spoony picked up a knock in the closed-doors game – nothing to do with his knee - so we’ll assess him over the next couple of days.
“We don’t know if he’ll be available on Saturday yet.
“It’s big week coming up and it’s important we have as many people fit and ready to play as possible.”
Connor McLennan and Theo Bair were again on the scoresheet in the friendly fixture.
And Tony Gallacher successfully came through another full game.
“Tony played another 90 minutes, which was great,” Davidson said.
“Connor scored a hat-trick and Theo got a goal again as well.
“I asked them both if they wanted to play and they were really keen to.
“They’re scoring goals and putting pressure on me to pick them.
“The competition for the forward line is something we haven’t had for a while, which is really pleasing.”
Davidson said there was no fresh update yet on Graham Carey’s injury.
