Fox, 26, picked up his only cap to date in a 3-0 defeat to Wales during his brief stint at Celtic but looks set to add to that as Rangers left-back
Noticeably, Celtic duo
Meanwhile, Manchester United midfielder Darren Fletcher will meet up and train with the Scotland squad this week, Levein revealed.
The 28-year-old's career was seemingly in the balance when Red Devils boss Sir Alex Ferguson revealed last month that the Scotland captain was yet to return to training following a long-standing chronic bowel complaint.
But Levein, who named his squad for the upcoming friendly with Australia on Monday morning (Monday night AEST), confirmed Fletcher is now on his way back to playing competitive football for the first time since November.
Cerezo Osaka claimed a 2-1 J.League win against Nagoya Grampus, which failed to capitalise after Josh Kennedy scored a late goal.