Manchester United have reportedly placed Celtic's Kieran Tierney on their transfer shortlist as the Red Devils consider strengthening their defence at the end of the 2017-18 campaign.
Despite Luke Shaw's improvement in recent weeks, it is understood that United are in the market for a new left-back, and Fulham's Ryan Sessegnon is said to be very much in the thoughts of head coach Jose Mourinho.
However, according to the Daily Record, the 20-time English champions have also been closely monitoring the performances of Celtic full-back Tierney with the view to a potential move.
Tierney came through the youth system at Celtic, and recently signed a new six-year contract with the Hoops.
The nine-time Scotland international has scored three times and registered seven assists in 36 appearances for his club during the 2017-18 campaign.