Hall has impressed for Newcastle in both the Premier League and in European competition, and his performances have attracted the attention of United as Michael Carrick looks to strengthen his options at full-back.
Sources indicate that Hall views a move to Old Trafford favourably, with the prospect of Champions League football next season a significant draw for a player at this stage of his career.
Newcastle United will not want to lose a young player who has been one of their better performers, and any deal would require a significant fee. The situation bears watching as the window develops, with both clubs aware that the player's own ambitions will play a role in shaping the outcome.
Hall's development at St James' Park has been one of the more encouraging stories of recent seasons, and losing him to a direct rival would be an unwelcome outcome for a Newcastle side that has invested heavily in building a competitive squad.
Manchester United's interest in Hall is part of a broader summer recruitment plan targeting young English talent to reinforce their squad under Carrick's management.
For Newcastle, the situation mirrors the broader challenge of retaining talented players who attract interest from clubs with larger wage structures and European competition. Hall's development has been one of the club's success stories, and losing him to United would be an outcome they will resist if possible.
Whether United are willing to meet Newcastle's valuation for a player still at an early stage of his career will determine how serious this pursuit becomes in the coming weeks. Hall's openness to the move is the critical detail — United know the player's intentions, which gives them a strong foundation to build an approach.