Ronald Koeman: Pep Guardiola was my protege; now he is the best manager, Ronald Koeman
Johan Cruyff - Wikipedia
Barcelona pay tribute to Johan Cruyff before El Clasico against Real Madrid in powerful fashion - Eurosport
On this day, May 20, 1992: Johan Cruyff's Barcelona 'Dream Team' win first European Cup
Total Legend: Remembering Johan Cruyff
On this day, May 20, 1992: Johan Cruyff's Barcelona 'Dream Team' win first European Cup
Johan Cruyff's all-time best XI – Barcelona and Ajax legend revealed his dream lineup in new book – talkSPORT
The release of Johan Cruyff's autobiography serves as a reminder that his influence will span generations
Barça remember Cruyff on fifth anniversary of his passing
Johan Cruyff's legacy, five years after his death: How he shaped Ajax, Barcelona, world soccer - ESPN