Julio Arca's northeast outfit make their first-ever visit to Pilgrim Way – in their first outing on the road at Step 2.
The Mariners were 3-1 victors over Alfreton Town on the opening day of the season, with new signings Aaron Martin and Jed Abbey sharing the goals.
United, meanwhile, will be aiming to build upon their 1-1 draw at Buxton on the opening day, with Kelsey Mooney on target for the Pilgrims.
He and Jimmy Knowles could lead the United line once again, after being given the nod at Silverlands seven days ago.
Ethan Sephton and Ryan Hand are United's only definite absentees.
LIVE COVERAGE
BBC Radio Lincolnshire online full-match commentary, courtesy of Dave Remnant and Craig Singleton, is available.
Twitter updates will be available via @bostonunited throughout the afternoon.
TICKETS
The match is NOT all-ticket – but ticket purchases are recommended. Click here to buy a ticket.
TRANSPORT
Click here for a full guide on transport to and from the Jakemans Community Stadium - with car parking reserved for seasonal pass holders and club guests.
SHUTTLE BUSES
Click here for full details on in-town pick-ups (£1.50 per journey).
ELLENDERS
Ellenders will be open from 11.30am.
HOSPITALITY
Doors for Club 85 and the executive boxes will open at 12.30pm.
PIC: Dan Westwell.