The Lincolnshire team travel to Bromsgrove Sporting (kick-off 3.00pm) to play the Midland Football Combination in the FA Inter-League Cup.
United will be represented by the likes of Andy Hewitt, Steve Lovett, Richard Jackson and Tom Sergeant, while highly-rated Cleethorpes Town strike duo Luke Mascall and Ricky Belding will also figure.
The winners will play host to the Cheshire League in the quarter-finals.