Sheffield Wednesday will host Chesterfield in the Carabao Cup on Tuesday 8 August at 7.45pm.
The draw for the first round took place last week in Bangkok, Thailand, home of new EFL partners and competition sponsors, Carabao Energy drink.
The Owls begin their 2017/18 campaign with a trip to Preston in the Sky Bet Championship before facing the Spireites on home soil three days later.