Swedish national team star Alexander Isak is one. Ajax Champions League hero Matthijs De Ligt and Romas Justin Kluivert two others. All three have experienced the feeling of stepping onto Skytteholms IP to face the heaviest possible youth opposition in the Lennart Johansson Academy Trophy. - I have heard players compare it with the feeling before a local derby in the swedish top flight, says AIK's academy boss Leif Karlsson.