Manchester United are reportedly keeping tabs on Benfica winger Goncalo Guedes ahead of a potential transfer next summer.
The 19-year-old, who has been described in the past as "the new Ronaldo", has been a key player for the Portuguese giants this season after he signed a new four-year deal over the summer.
According to The Mirror, United scouts were in attendance at the Estadio da Luz on Sunday to watch Guedes in action during Benfica's 4-0 triumph over Feirense.
Guedes, who is represented by super agent Jorge Mendes, was also being watched in the same match by scouts from Juventus, Valencia, Osasuna, Middlesbrough and "two German clubs".
The youngster already has two caps for the Portugal national side, having earned his first call-up in November 2015.