Chris Wilder has led Sheffield United to promotion to the Sky Bet Championship

Sheffield United manager Chris Wilder is in talks over a new improved contract, according to Sky sources.

The Blades have moved to tie down their promotion-winning boss after Sunderland expressed interest in putting him in charge at the Stadium of Light.

Wilder currently has two years remaining on the deal he signed upon joining from Northampton Town in 2016.

Chris Wilder was of interest for the vacant Sunderland manager's job

United snapped him up after he won League Two with Northampton and he took the Blades up to the Sky Bet Championship as champions of League One last season - ending their six-year exile from the second tier.

Sky Sports News HQ understands Wilder has been one of a number of candidates under consideration in Sunderland's search for a successor to David Moyes.

The Black Cats conceded last week that doubts over the future ownership of the club were affecting that search.

Wilder, who played for Sheffield United across two spells in the 1980s and 1990s, began his managerial career with non-league Alfreton Town and Halifax Town before joining Oxford United and then Northampton.