when did messi started playing for barca first team
Lionel Messi During the 2003–04 season, his fourth with Barcelona, Messi rapidly progressed through the club's ranks, debuting for a record five teams in a single campaign. After being named player of the tournament in four international pre-season competitions with the Juveniles B, he played only one official match with the team before being promoted to the Juveniles A, where he scored 18 goals in 11 league games.[30][31] Messi was then one of several youth players called up to strengthen a depleted first team during the international break. French Winger Ludovic Giuly explained how a teenage Leo caught the eye in a training session with Frank Rijkaard's first team: "He destroyed us all... They were kicking him all over the place to avoid being ridiculed by this kid, he just got up and kept on playing. He would dribble past four players and score a goal. Even the team's starting centre-backs were nervous. He was an alien."[32] At 16 years, four months, and 23 days old, he made his first team debut when he came on in the 75th minute during a friendly against José Mourinho's Porto on 16 November 2003.[21][33] His performance, creating two chances and a shot on goal, impressed the technical staff, and he subsequently began training daily with the club's reserve side, Barcelona B, as well as weekly with the first team.[34] After his first training session with the senior squad, Barça's new star player, Ronaldinho, told his teammates that he believed the 16-year-old would become an even better player than himself.[35] Ronaldinho soon befriended Messi, whom he called "little brother", which greatly eased his transition into the first team.[36][37]
Lionel Messi After a year at Barcelona's youth academy, La Masia, Messi was finally enrolled in the Royal Spanish Football Federation (RFEF) in February 2002. Now playing in all competitions, he befriended his teammates, among whom were Cesc Fàbregas and Gerard Piqué.[20] After completing his growth hormone treatment aged 14,[21] Messi became an integral part of the "Baby Dream Team", Barcelona's greatest-ever youth side. During his first full season (2002–03), he was top scorer with 36 goals in 30 games for the Cadetes A, who won an unprecedented treble of the league and both the Spanish and Catalan cups.[20][22] The Copa Catalunya final, a 4–1 victory over Espanyol, became known in club lore as the partido de la máscara, the final of the mask. A week after suffering a broken cheekbone during a league match, Messi was allowed to start the game on the condition that he wear a plastic protector; soon hindered by the mask, he took it off and scored two goals in 10 minutes before his substitution.[23] At the close of the season, he received an offer to join Arsenal, his first from a foreign club, but while Fàbregas and Piqué soon left for England, he chose to remain in Barcelona.[18][24][25]