Sheffield Wednesday will face newly promoted Russian top flight side FC Arsenal Tula during their pre-season camp in Slovenia.
The Owls were due to face Serbian SuperLiga side FK Cukaricki on July 23 but Tula will now be the opposition.
Tula have had an incredible rise up the Russian leagues, winning three consecutive promotions. They will make their top flight debut next season.
The clash will take place at the Ptuj City Stadium, close to the Owls’ training camp in Maribor, with a 5pm GMT kick off.