Jarell Quansah studied the art of elite defending by asking Liverpool to provide him with wide-angle footage of Virgil van Dijk and Jurgen Klopp's other centre halves.
The 20-year-old has broken through under Klopp this season, making his full Premier League debut in September, and has forced a way into England's Under 21s.
The academy product revealed the attention to detail that has gone in behind the scenes, spending hours poring over clips given to him by the club's analysis department.
'I used to get high-cam footage instead of TV footage so you could see everything, how the back line moves and a little bit of everything,' he said.