"Obviously, it is a handicap that he has never won anything with the national team, despite proving himself at club level.
"Diego Maradona was the champion of the world in 1986 and a runner-up in 1990, and Messi is a monster of the world game but maybe to be at his level, he lacks the title of being a world champion like Pele and Maradona.
"All that he is missing is the World Cup, it would be the last thing for him to do."
"No team is called Messi. The international side doesn't depend on a single player, it has to be a collective effort but for Argentina, I've never seen him play like he does for Barcelona"
"At Barcelona, he had Xavi. Now he has [Andres] Iniesta, [Ivan] Rakitic and Luis Suarez and there is a footballing idea and a system that would need to be the same with Argentina.
"However, he has been a runner-up three times - the World Cup, the Copa America and the Copa America centennial edition. He has always been fighting for first place but is just missing a little bit of luck to win the title."