The Barcelona star has enjoyed a turbulent international career but a former mentor and coach believes he's always performed to his best
Former Argentina international and the nation's current Under-17's manager Pablo Aimar has stressed that Lionel Messi's dedication is unquestionable.
Aimar, who also acts as an assistant to Lionel Scaloni, briefly played alongside Messi at international level and was once cited as an idol by the superstar as he was coming through the ranks at Barcelona.
While Messi has won trophies regularly at club level, he is yet to win a major piece of silverware at senior level with Argentina and briefly retired from international duty after seeing his country lose the 2016 Copa America final on penalties against Chile.