Messi beat Reds defender Virgil van Dijk to the award, with a leaked image showing the Dutchman losing by two votes.
When asked for his take on the Ballon d'Or pecking order: "That is how people see it. Absolutely no problem.
"Lionel Messi is probably the best player I saw in my lifetime. Maradona, but I see Messi more often. Lionel rightly so won it six times.
"Cannot remember a more impressive season for a defender, ever."
He added: "We played an outstanding season, we won the Champions League and got 97 points, we cannot do that without top performing players.
"It is nice but it is last season, I am sure now all awards are done and the boys can go for new awards if they want."