Ahead of the Owls’ 2016/17 campaign, Wednesday will return for duty on Monday 4 July at Middlewood Road to begin preparations for the new term.
From there, Carlos Carvalhal’s side will face the usual flurry of pre-season fixtures, with the first taking place on Wednesday 13 July against National League North side Alfreton Town at the Impact Arena (7.30pm).
A trip to League 1 side Chesterfield will then follow on Saturday 16 July (1.00pm).
Wednesday will then host a prestigious pre-season fixture when Portuguese champions Benfica visit Hillsborough on Wednesday 20 July (7.30pm).
The European giants won their third consecutive Primeira Liga title in style in 2015/16, being crowned champions for a record 35th time and also set a record point-haul of 88 from 34 games.
On the final day of the campaign, Benfica set another record as they defeated Maritimo 6-2 in the Taca da Liga final to secure a record seventh trophy in nine editions of the competitions.
Wednesday then fly out to Faro, Portugal on Thursday 21 July where they will be put through their paces in the warm weather environment.
Portuguese outfit CD Nacional will provide the opposition on Sunday 24 July at the Estadio Albufeira Municipal stadium, with match details to be confirmed.
After returning to England on Tuesday 26 July, the Owls will host League One side Port Vale on Sunday 31 July (4.30pm) in their final friendly fixture.
The Owls’ Sky Bet Championship campaign gets underway on Sunday 7 August with a home game against Aston Villa (4.30pm) broadcast live on Sky TV.