Manchester United have historically kept a close eye on talents at Sporting CP. The Red Devils famously signed Cristiano Ronaldo from the Portuguese giants back in 2003 in an £12m deal – a move many regard to be one of the best transfers of all time. Furthermore, Manchester United have also taken the likes of Nani and Bruno Fernandes from Sporting CP – with both sides sharing a strong relationship. The latter has since become captain under Erik ten Hag – but is currently leading his colleagues nowhere special as Manchester United sit 12th in the Premier League. Now, another top talent at Sport…