With only 48 hours separating the tests from kick-off at the Ramon Sanchez Pizjuan, manager Hansi Flick faces a delicate tactical choice. Known for refusing to rush players back ahead of international breaks, Flick is unlikely to take unnecessary risks with Garcia.
The German coach must decide whether to rely on Szczesny once again or turn to summer arrival Dominik Livakovic.
Croatia No. 1 Livakovic is still waiting to make his official debut in Blaugrana colours.