The victory, sealed with goals from teenage star Lamine Yamal and a late strike by Fermin Lopez, marked the culmination of an unbeaten domestic run since late December, showcasing the team's relentless drive and unity.
The Catalans have been unstoppable, adding the Spanish Super Cup in January and the Copa del Rey, where they outclassed rivals Real Madrid in the final, to their trophy haul.
Flick, reflecting on the season, credited the collective spirit that has defined Barcelona's campaign. "The second half of the season, we've been phenomenal. No losses, just incredible work. The team, club, and fans deserve this," he said at the post-match press conference.
"We've built a family here, a culture of passion and care. It's special, and I'm thrilled to be part of it."
Yamal, the 17-year-old prodigy, stole the spotlight with a stunning second-half goal, curling a precise effort past the Espanyol keeper after a trademark move he hones daily in training.
Yet Flick was quick to emphasize the team's collective strength over individual brilliance. "This is Barcelona's title, not one player's. Lamine's been vital, but we're a unit. Everyone's played their part perfectly," he said. "The fans should be proud of this team."
Flick also highlighted the squad's mentality, which has transformed a transitional season into a trophy-laden triumph. "We've given everything for this club. The way we fight for each other is unique," he added.
Posts on X echoed this sentiment, with @PremSportsTV quoting Flick's pride: "I'm very proud of all the team. I think we deserved to win the league."
The Catalans' domestic treble, Super Cup, Copa del Rey, and La Liga, marks a remarkable first season for Flick, who has silenced doubters with a blend of tactical nous and squad harmony.
As celebrations erupted, Flick's focus remained on the team's legacy. "We've shown the best version of Barcelona. This is what we aimed for," he said. For fans, this title is a testament to a rejuvenated side ready to dominate for years to come.
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