This writer has had the privilege and blessing to watch in person and write about some of the greatest men's superstars and personalities on the planet.The list includes:Pele.Diego Maradona.Johan Cruyff.Eusebio.Franz BeckenbauerGerd MuellerGordon Banks.Carlos Alberto.Nene Cubillas.David Beckham.Thierry Henry.Lothar Matthaeus.And of course, Lionel Messi.Unless you were out of range of the internet or social media, you already know that Messi announced his retirement from international soccer at the age of 39.“After the time that has passed since the final, and after giving it a lot of thought, I want to let everyone know that I am retiring from the National Team,” Messi…