Speaking to Mundo Deportivo, Ronald de Boer, the twin of Frank de Boer, both ex-Barcelona players, left his impressions of Matthijs de Ligt and Frenkie De Jong while he works with the Ajax youth teams.

"Frenkie is incredible. He's a footballer that you go to the stadium just to watch him. He's one of those that makes all the difference and he's still young. I don't know if he will end up at Barcelona, but it would be normal if he did. He has enough quality to make it there."

Ronald also made sure to praise the young Ajax centre back De Ligt: "He's also fantastic, he's 19 but plays like he's 30 years old! Both would start for Barcelona."