Health and safety laws established within the Taylor report prevents new stadia from operating at full capacity from the off, meaning may not be full for the first few fixtures.
The friendly against Blackburn Rovers will also likely be affected by these regulations, although this will depend on the success of the Fulham game.
The club has also revealed the ticket arrangements for both matches, with season ticket holders able to purchase their places for both friendlies between July 7th-14th.
Any remaining tickets will then go on general sale, however, the opening game with Fulham is expected to sell out due to the reduced capacity.