After an impressive season Kozluk can now play at either right or left back which suits United, however it is rumored that newly promoted Wolves are chasing the former Derby County man.
McCall's contract ends this summer but Blades boss Neil Warnock is very keen to renew that player/coach roll which it is believed that the Yorkshire born star will sign.
Another midfielder who has been offered a contract is Zimbabwean Peter Ndlovu ho has been offered a two year deal.
Meanwhile sad news has emerged around Bramall Lane today that a total of 18 players will leave the club, some are first team but do not currently get into the starting 11 while others are YTS players, the following have been released.
Adam Baum, Ben Doane, Ricky Howarth, Rohan Hazell, Chris Glarvey, Gary Kelly, Lewis Killeen, Ryan Mallon, Kevin Murphy, Rob Nugent, Ben Purkiss, Danny Sloane, Grant Smith, Tyrone Thompson, Simon Tracey (Maybe offered a new contract in later months), Robert Ullathorne, Paul Hurrell, Danny Longmore (All released). Marcel Cas (Signed non-contract terms). Rob Kozluk, Stuart McCall, Peter Ndlovu, Owen Morrison, (Offered new deals). Ben Scott, Anthony Tansley (Offered three month contracts).