If Manchester United are serious about bringing in one of the brightest young talents in Brazilian football – the next potential Samba superstar if you will – then Real Madrid’s Champions League thriller with Man City on Tuesday night must just be the push that the Red Devils need. It is easy to forget, as Vinicius Junior and Rodrygo Goes dovetailed in devastating fashion against Pep Guardiola’s side, that there was so much bemusement when Real Madrid snapped up both players for big money before their 18 birthday. Vinicius was just 16 when he joined for an eye-watering £38 million. Rodrygo, on…