Messi is the king of Barcelona

Messi played in Barcelona's junior Infantil B and Cadete B & A teams from 2000 to 2003 (scoring 37 goals in 30 matches in Cadete A). He was nearly released from the club in 2003 because of financial constraints, but his youth coaches convinced management to keep him (Cesc Fabregas was released during this purge). [25] Season 2003"04 saw him on a record five different teams: [26] He started one match in Juvenil B (one goal) and got promoted to Juvenil A (14 matches, 21 goals). Later, he debuted for the FC Barcelona C team ( Tercera Divisi"n ) on 29 November 2003 and for FC Barcelona B ( Segunda Divisi"n B ) on 6 March 2004. He played for both teams during the season (10 matches, five goals and five matches, zero goals, respectively). [27][28][29] Even before these two debuts, Messi made his official debut for the first-team on 16 November 2003 aged 16 years and 145 days, in a friendly match against Porto. [30] [31] Less than a year after his start, Frank Rijkaard gave him his league debut against RCD Espanyol on 16 October 2004 (at 17 years and 114 days), becoming the third-youngest player ever to play for Barcelona and youngest club player to play in La Liga, which would be broken by Bojan Krkić in September 2007. When he scored his first senior goal for the club against Albacete Balompi" on 1 May 2005, Messi was 17 years, ten months and seven days old, becoming the youngest to ever score in a La Liga game for Barcelona [32] until it was again broken by Bojan Krkić in 2007, scoring from a Messi assist. [33] Messi said about his ex-coach Rijkaard: "I'll never forget the fact that he launched my career, that he had confidence in me while I was only sixteen or seventeen." [34] During the season, Messi played also in Barcelona B ( Segunda Divisi"n B ) scoring 6 goals in 17 matches. 2005"06 season On 16 September, for the second time in three months, Barcelona announced an update to Messi's contract; this time it was improved to pay him as a first team member and extended until June 2014. [20] Messi obtained Spanish citizenship on 26 September 2005 [36] and was finally able to make his debut in the season 's Spanish First Division . Messi's first home outing in the Champions League came on 27 September against Italian club Udinese . [30] Fans at Barcelona's stadium, the Camp Nou, gave Messi a standing ovation upon his substitution , as his composure on the ball and passing combinations with Ronaldinho had paid dividends for Barcelona. [37] Messi netted six goals in 17 league appearances, and scored one Champions League goal in six. His season ended prematurely on 7 March 2006, however, when he suffered a muscle tear in his right thigh during the second leg of the second round Champions League tie against Chelsea. [38] Rijkaard's Barcelona ended the season as champions of Spain and Europe. [39][40] In the 2006"07 season , Messi established himself as a regular first team player, scoring 14 times in 26 matches. [41] On 12 November, in the game against Real Zaragoza, Messi suffered a broken metatarsal, ruling him out for three months. [42][43] On 10 March, El Cl"sico saw Messi in top form, scoring a hat-trick to earn 10-man Barcelona a 3"3 draw, equalising three times, with the final equaliser coming in injury time. [44] In doing so he became the first player since Iv"n Zamorano (for Real Madrid in the 1994"95 season) to score a hat-trick in El Cl"sico.[45] Messi is also the youngest player ever to have scored in this fixture. Towards the end of the season he began finding the net more often; 11 of his 14 league goals for the season came from the last 13 games.