Championship club to visit Kent in pre-season.
Gillingham will play Millwall in a pre-season friendly at Priestfield on Sunday July 21 (1pm).
Steve Evans and Paul Raynor have been in discussions regarding their pre-season schedule and have managed to agree a fixture against the Championship club a fortnight before the opening game of the 2019/20 season.
Fixtures are revealed at 9am on Thursday June 20.
Ticket information will be released in due course.