Sheff Utd targeting Sean Robertson on free transfer after right-back was released by Patrick Vieira’s Crystal Palace

SEAN  ROBERTSON is a target for Sheffield United after Crystal Palace released the right-back.

The Blades need cover as Jayden Bogle recovers from injury.

And Robertson, 21, may be offered a deal following his Palace exit.

Sheff Utd are looking to return to the Premier League after crashing out in the Championship play-offs last season.

They have made three signings so far this summer.

Ciaran Clark has arrived on a loan deal from Newcastle.

And Tommy Doyle will also spend the season on loan at Bramall Lane from Manchester City.

The Blades spent £4million on defender Anel Ahmedhodzic from Malmo, too.

And Robertson could soon become signing No4.

United’s fresh start comes after they released NINE players last month.

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Striker David McGoldrick was let go after 136 appearances.

And Blades bid farewell to fellow forward Lys Mousset just three years after his £10m move from Bournemouth.

Midfielder Luke Freeman was also among the casualties revealed in May.