Great Wakering Rovers and Leyton Orient are two pre-season opponents that can be announced.
The two friendlies have been rubber-stamped for Chris Powell’s side ahead of the Sky Bet League One season.
Blues fans will get their first glance of early preparations when they face newly promoted to the Bostik North, Great Wakering, at Burroughs Park on Saturday 7 July, 3pm KO.
Vanarama National League side Leyton Orient, managed by Justin Edinburgh, are another opponent in pre-season.
Blues will travel to The Breyer Group Stadium [Brisbane Road] on Tuesday 24 July, 7.45pm KO.
Further details on Blues’ pre-season schedule will be announced in due course.