Frank Lampard studied today's FA Cup quarter-final rival Patrick Vieira before deciding to make his own transition from elite midfielder into management.
Lampard ended his illustrious playing career at New York City FC when Vieira was in charge and seeing the Frenchman operate at close quarters influenced his own decision to stay in football.
'Being with him in New York was really enjoyable,' revealed Lampard.
'I was 38 and starting to see things differently. I was inquisitive about how he worked.
'He put a lot of effort into his pathway, first with Man City under- 23s, studying a lot.