It promises to be a hectic pre-season for United's next generations at the Redtooth Academy.
All ages groups will be leaving the steel city in the weeks ahead and Academy Manager Nick Cox has outlined the importance of developing players on and off the field during pre-season.
Cox remarked: "It is fantastic to see our youngsters preparing for what promises to be a busy, busy summer.
"We are privileged that we have the opportunity to allow our youngsters to compete in tournaments across the country in addition to those travelling abroad.
"It will be an exciting few weeks and it is a great experience for the lads of all ages to experience something different.
"We are also confident that we will be competitive on the field."
The U9s and U10s recently departed for Belgium, where they will compete against international opposition during a three-day stay.
The U11s, U12s, U13s and U14s are heading to the Oakham Festival in Leicestershire (formerly the Repton Festival), whilst the Blades will also be represented in the Foyle Cup and Milk Cup (held in NorRepublic of Ireland and Northern Ireland respectively).
Meanwhile, the U16s will compete in the Dennis Law International Tournament which takes place in Aberdeen in July.
The U18s will announce a series of friendlies on home soil prior to heading to Holland to take part in the Leonardo Tour.