Xavi, Iniesta, Messi, Piqué, Alves, Busquets and Pedro participated in both trebles
Barça became the first team in history to achieve two trebles: La Liga, Copa del Rey and Champions League. And if that wasn't enough, they did it in no more no less than 6 seasons. There are seven footballers that have the honor to participate in both Barça trebles. They are Xavi, Iniesta, Messi, Piqué, Alves, Busquets and Pedro.
Until now seven teams achieved the treble but Barça are the only one that achieved it twice. On season 2008/09, Barça celebrated their first treble: the 20th Liga, the 24th Copa del Rey against Athletic at Mestalla and the third Champions League in their history, in Rome against Manchester United. That year was historical, with six titles.
Six years later, and again with a manager that made his debut the same year on the bench of the first team, Barça did it again. They repeated the treble: the 23th Liga, the 27th Copa del Rey and the 5th Champions League.