"Ronaldinho plays bongos until two in the morning every night," explained Sala-I-Martin on the BBC documentary Pep Guardiola: Chasing Perfection. "Everybody sees that, everybody has cellular phones and takes pictures of him. Everyone knows — we have a discipline problem.
"Ronaldinho is getting older, partying all the time, trying to suck Messi into his lifestyle. How do you stop it? Well we need a sergeant, we need a general."