16/11/2003 Lionel Messi makes his official debut for FC Barcelona
Lionel Messi vs FC Porto (2003) - Official Debut
Lionel Messi, aged 16 years, four months, and 23 days old, made debut in a friendly match against Jose Mourinho's Porto and he was already turning out for the Barcelona 'B' team in no time. A single training session with the first-team squad let the great Ronaldinho to believe that Messi would surpass him. On 16 October 2004, Messi made his first-team bow. In an away derby against Catalan rivals Espanyol.