The 1990s marked a significant era for Alverca and its supporters. After several years battling in the lower divisions, the team achieved promotion to the Primeira Liga in 1995, a feat that not only elevated the club to a new level but also united the city of Alverca do Ribatejo around a common dream. The Stadium, which had already been pulsating with the passion of its fans, became the home of great football moments, where Os Lezirões faced some of the best clubs in the country.

The 1995-1996 season, their first in the Primeira Liga, proved to be a true test for Alverca. Despite the challenges, the team managed to win the admiration of the public with a bold approach and engaging attacking football. The club, featuring players like Fernando Ferreira and Nuno Assis, became known for its grit and determination, characteristics that quickly captured the hearts of the supporters. The atmosphere at the Stadium, filled with chants and flags, turned every match into a celebration, making opponents feel the weight of the unwavering support from the stands.

One of the most memorable matches that season was against Benfica, where Alverca demonstrated that it was not a team to be underestimated. The courage and fighting spirit of the team became an example for young players and a source of pride for their fans. Performances like this helped cement Alverca's reputation as a club that dares to dream big.

However, life in the Primeira Liga is never easy, and Alverca faced significant challenges. The battle against relegation was constant, but the passion of the supporters never wavered. The city of Alverca do Ribatejo saw exponential growth in its fan base during this period, with many young people becoming fervent supporters of Os Lezirões, creating a new generation of fans who would forever remember the club's rise.

The experience in the Primeira Liga in the 90s left an indelible mark on the history of Alverca. Although the club faced difficulties in subsequent seasons, the memory of that golden era still lives in the hearts of its supporters. Alverca’s rise to the Primeira Liga was not just a sporting achievement; it was a moment of unity and pride for the entire community, which continues to support the team every step of the way.