Manchester United face competition for Lens' central defender Facundo Medina.
United have been watching the Argentina international this season.
But the Daily Mail says AC Milan are eyeing up a summer move for Medina, it is reported.
The Serie A giants are said to be looking at options to replace Alessio Romagnoli in defence.
However, Stefano Pioli's side will have to compete with Manchester United for the 21-year-old's signature.
