Co-ordinated by United fan Tom Steadman of Games Central, the tournament will be open to visitors to the club's annual Community Day, which gets under way at 11.00am.
A host of other attractions will be on offer throughout the day, including an open first team training session, led by Craig Elliott and John McDermott, at noon.
The first team photoshoot will also take place, with youngsters afforded the opportunity to feature on the annual photograph.
United president John Blackwell, meanwhile, will launch his new book.
The club's Community Day runs until 3.00pm, with The Pilgrim Lounge open throughout.