Manchester United have been linked to a number of left backs so far this season, and a new name has popped up as Jose Mourinho seeks to strengthen this area.

United are willing to give Mourinho money to spend to strengthen the squad and the manager is keen to add a left sided defender – the board, however, disagree strongly that a large investment should be made in that area when they have a prospect like Luke Shaw.

Shaw’s recent form has certainly given that opinion some backing but Mourinho remains unconvinced that a player who has certainly proved to be unreliable during his tenure has finally turned a corner. United however are reluctant to pay £40m on a player like Danny Rose who they perceive as even more of a gamble given his injury record. The £60m quoted by Juventus for Alex Sandro, one of the world’s best players in that position, is seen as prohibitive, as are the sky-high fees Fulham are wanting for their jewel, Ryan Sessegnon.

With that in mind, Mourinho aide Duncan Castles report that the manager may have suggested a compromise – Celtic defender Kieran Tierney, a player who will likely be a less alternative option and also be happy to provide competition for Shaw. Tierney is a devoted Celtic fan and is unlikely to push for a move but may be tempted by the prospect of playing in the Premier League and latter stages of the Champions League.