By ESPNSTAR.com staff
Mascherano joined the Catalan side in 2010 from Liverpool and has enjoyed a successful time with the club, winning La Liga, Champions League and the Copa del Rey.
The Argentine highlighted the Champions League win against Manchester United as the the best achievement of his career.
"Playing at Barcelona is like winning a prize, it's a blessing. Joining Barca in 2010 was a great decision," Mascherano said at a social media event.
"In the two years that I have been at Barca, the Champions League final at Wembley was my best moment.
"With Liverpool I got to a final, but we lost to AC Milan and I never though at that moment that I would have another chance."
Despite being shunted from a midfield role to become a defender at the club, Mascherano felt that the decision was the right one.
"Obviously I took the chance. You have to grab them when they come up in football. I couldn't let it pass and I think it was the right decision."