The Pilgrims will now travel to the Premier Kitchens Arena on Monday July 30 (kick-off 7.45pm).
The switch has been necessitated following Hull City’s agreement to send their development squad to The Jakemans Stadium on Wednesday August 1 (kick-off 7.30pm).
United’s clash against Stamford will either be a Lincolnshire Senior Shield semi-final — or a pre-season friendly if the Pilgrims are eliminated from the competition by Lincoln United on Tuesday July 24.
The Pilgrims are in discussions with clubs regarding pre-season friendlies for Saturday August 4 and the following midweek.
Further details will be announced once confirmed.