One of the top 10 footballers of all time dies at 68. A Cryuff turn to you, good sir!
There have been few others who have been as influential in the game.
Absolutely, Total Football.
He also had a brief autumnal stint in the US, with the Washington Diplomats, off the top of my head maybe some other NASL teams.
I saw him play when he was with the L.A. Aztecs and Washington Diplomats in the old NASL.
1979 was the year I learned the Cruyff turn. 
Nice tribute article here. It has an amusing story about the Diplomats (with Cruyff) flying back to DC after losing in the playoffs to LA, and being greeted by a few hundred fans. Apparently in Europe, fans who gather to meet the team coming home after a loss are typically there to throw bottles and curse, so Cruyff was nervous about approaching them, not realizing that fans here will gather for a celebration, win or lose.
Not for most teams and not most fans even for Barça (big teams do have a problem with fans screaming like they’re having quintuplets any time “they” don’t win), but maybe Cruyff was used to the fathers of the Boixos Nois.