Bootham Crescent will play host to the club's first senior friendly of the summer as Karanka's squad return to action just six weeks on from the Play-Off Final defeat at the hands of Norwich City.
It's also confirmed that the squad will travel to Doncaster Rovers on Saturday July 25 (3pm) for a meeting with Paul Dickov's League One hopefuls at the Keepmoat Stadium.
George Friend and James Husband are both ex-Rovers men while former Boro striker Curtis Main is in the ranks at Doncaster.
The club will confirm further pre-season games in due course, and it's anticipated that there will be a fixture at the Riverside on Saturday August 1.
Further details will be available via mfc.co.uk.