A report from The Sun earlier this week claimed that Manchester United and Chelsea were keeping tabs on the Sporting Lisbon winger.

It was said that both Premier League sides were to scout the 21-year-old during Sporting's 2-1 Champions League defeat to Madrid last night.

But, according to The Daily Mirror, Madrid themselves are in the running for his signature.

Martins has been likened to club legend Luis Figo but couldn't prevent his side losing to a late Karim Benzema goal in Lisbon.