Put simply, it means all 10 outfield players in a team are comfortable in any position. So if a defender wants to go ... The brains behind it all was the Dutch captain and Ajax star player - Johan ...

Any player who did move out of position was replaced by someone else ... of one of the greatest players of all time, Johan Cruyff, who was seen as the most important component of the system.

Barça Women will host Chelsea at the Estadi Johan Cruyff on 20 April at 6pm CET whilst the second leg will take place at Stamford Bridge on 27 April at 3pm CET. This is Barça's seventh ...