Ahead of the new season, United's development squad has been supplemented with five new signings.
French defender Nicksoen Gomis joins from Evreux FC 27, whilst German stopper Jordan Amissah will add further competition to the goalkeeping ranks and lists Borussia Dortmund and Schalke amongst his former clubs.
Midfielder Zak Brunt, formerly of Matlock Town and Derby County, has penned a deal with the Blades, whilst Reece York and Harry Sheppeard join the club from Fulham and Tadcaster Albion, who the Blades face on Friday evening, respectively.
The aforementioned youngsters have linked up with the current first and second-year scholars for pre-season training and all will take part in the scheduled friendlies that kick-off later this week.
Academy Manager Travis Binnion remarked: "Preparations are underway at Shirecliffe as we look forward to hopefully another positive season for both development age groups.
"We'll be looking for progress from all those within the group and hopefully a few can impress the first-team management during the campaign.
"As always, I'm grateful to work of our recruitment team, led by Steve Holmes, as they continue to work hard behind the scenes to make our group stronger."