Interest across Europe for Sporting CP wing-back Nuno Mendes continues to grow.
AS says Manchester United are facing a battle with neighbours Manchester City for Mendes.
The 18-year-old left-back is regarded as one of the rising stars in Europe with a number of elite scouts watching his every appearance.
The Red Devils have been long-term admirers of the Portuguese ace, with Ole Gunnar Solskjaer hoping he could provide competition for Luke Shaw after Alex Telles' uninspiring start at Old Trafford.
Spanish giants Real Madrid are also known to have him on their radar.
But now City have 'approached Mendes at Pep Guardiola's request to initiate the negotiations' over a summer transfer.
