Sure, I'll structure the article as requested. Here's a 300-word abstract to start:

---

**Abstract:**

Lionel Messi's debut with FC Barcelona marked the genesis of a footballing legend, transitioning from a timid teenager to a global icon. This journey began with his first appearance for the Catalan club, where his precocious talent hinted at the extraordinary career that lay ahead. This article delves into Messi's inaugural moments with Barcelona, exploring his impact on the team, the evolution of his playing style, the challenges he overcame, and the profound influence of his debut on the world stage. From a promising youngster to an unparalleled football legend, Messi's debut set the stage for an illustrious career that redefined the sport.

---

**1、Early Days and Arrival**

At the tender age of 13, Messi left his hometown in Argentina for Barcelona, a move laden with hope and uncertainty. His debut with FC Barcelona's first team in 2004 showcased a prodigious talent, hinting at the greatness to come.

Stepping onto the pitch against Espanyol, Messi’s youthful exuberance was palpable. Despite his diminutive stature, his skill and vision mesmerized, laying the groundwork for his rapid ascent within the club.

Overcoming initial challenges, including adapting to a new country and rigorous training, Messi's perseverance and innate ability soon endeared him to fans and teammates alike.

**2、Emergence as a Key Player**

As Messi matured, his role within the team evolved significantly. By 2007, he had established himself as a key playmaker, with his dazzling dribbles and precise finishes electrifying Camp Nou.

His pivotal moments in crucial matches, such as the 2009 Champions League final, underscored his growing influence and ability to perform under pressure.

Messi's unique playing style, characterized by unmatched agility and creativity, began to reshape modern football, inspiring a new generation of players.

**3、Challenges and Triumphs**

Despite early setbacks, including injuries that threatened his career, Messi's resilience shone through. His return from adversity in 2010 reaffirmed his determination to succeed.

By overcoming these obstacles, Messi not only cemented his place in Barcelona’s history but also solidified his reputation as one of the greatest footballers of all time.

His consistency in delivering exceptional performances season after season became a hallmark of his career.

**4、Global Impact and Legacy**

Messi's debut marked the beginning of a global phenomenon. His influence extended beyond the pitch, capturing hearts worldwide with his humility and sportsmanship.

Off the field, Messi's charitable endeavors and advocacy for social causes further enhanced his legacy, making him a role model for aspiring athletes globally.

His impact on Barcelona and the broader football community continues to resonate, defining an era of unparalleled success and setting a standard that future stars strive to emulate.

总结：

From a promising debut to global reverence, Messi’s journey epitomizes the transformative power of talent, perseverance, and passion in shaping a legendary career.

His legacy transcends football, inspiring millions and leaving an indelible mark on the sport’s history.