The 17-year-old, who is on-loan from Manchester United, has been given permission to rest ahead of the European Under 19 Championship, that will be staged in Ukraine.
Partizan manager Slavisa Jokanovic insists they are not taking the game against Welsh side Rhyl lightly.
“I approach each game in a serious way,” he said. “We have no right to underestimate any club, any country.
“We have all played matches against semi-professional sides and no-one is going to give you anything.”