Here’s a look at all the players that the Blades have been tipped to sign so far, and how likely they are to sign...
1. Oliver McBurnie - Swansea City
Known interest: United are thought to be keen on the Swansea City man, but he could well follow his former manager Graham Potter to Brighton.
Photo: Stu Forster
2. Macauley Bonne - Leyton Orient
Agent talk: He's been linked with a number of clubs from the Blades to Leicester City, which suggests his agent is trying to get the 23-year-old's name out there.
Photo: Jordan Mansfield
3. Kieran Dowell - Everton
Possible: The Toffees will be keen for their youngster to play regular first team football next season, and a return to the Blades could make that happen.
Photo: Nathan Stirk
4. Jota - Birmingham City
Possible: A creative midfielder with sublime technical ability, the Spaniard will be high demand this summer, and the Blades could certainly stand a chance here.
Photo: Alex Pantling