Sheffield United have made a bid for Coventry City defender Bobby Thomas in the region of £5m.
One source also said that a bid of £8m has been registered with Coventry.
The 24-year-old moved to Coventry from Burnley in the summer of 2023 and signed a four-year deal.
He is closing in on a century of appearances for the Sky Blues, and played in both of their games so far this season.