Scottish rivals Celtic and Rangers are reportedly monitoring Chelsea defender Tomas Kalas, who is currently on loan at Bristol City.
Kalas has impressed for Lee Johnson's side in the Championship this season, mostly as a centre-back but the Czech international can also be deployed as a right-back.
According to The Sun, Celtic are leading the chase for the 25-year-old, but Rangers are also interested.
The report also claims that representatives of both clubs have watched the defender in the last two weeks.
Kalas, who has had seven loan spells from Chelsea, has 19 caps for his country.