The Owls play their final pre-season friendly against Spanish side Villarreal at Hillsborough before kicking off the new Championship season against Wigan next Saturday.
The Yellow Submarine finished fifth in La Liga last time out and will provide a tough test for Wednesday in this last warm up match.
Wednesday: Wildsmith, Palmer, Lees, van Aken, Pudil, Boyd, Pelupessy, Hutchinson, Bannan, Forestieri, Nuhiu
Substitutes: Dawson, Jones, Fox, Fletcher, Thorniley, Joao, Matias, Reach, Baker, Nielsen
Villarreal: Asenjo, Soberon, Funes Mori, Moreno, Fornals, Ekambi, Castillejo, Cazorla, Pedraza, Llambrich, Caseres
Substitutes: Gaspar, Marin, Ruiz, Fdez, Layun, Unal, Morlanes, Sansone, Pereyra, Suarez, Leiva, N’diaye, Torres