Sheffield United have reportedly had a €13m (£11.1m) bid for Trabzonspor goalkeeper Ugurcan Cakir rejected by the Turkish outfit.
Cakir will allegedly be seeking pastures new come the end of the season, with Liverpool, Everton and Southampton also said to be interested in the 23-year-old.
However, according to Fotospor, Chris Wilder's side are keeping a close eye on Cakir should Dean Henderson return to parent club Manchester United when his current loan deal expires in the summer.
The report also claims that Trabzonspor president Ahmet Agaoglu revealed up to five teams scouted the Turkey international in his side's last game, a 2-2 draw away to Besiktas.
Cakir, whose current deal with the Turkish side expires in 2024, is said to be worth up to €30m (£25m).