The pair were teammates with Barca and Barca B as youngsters.
Busquets said: "(My best teammates are) players who have also gone through Barca B, who have also been at home, who have more affinity ... Pedro in his day did the same and I could also say Xavi, Iniesta, Puyol, Piqué, Messi ...
"Players who have done more or less the same way and in the same time, and some are older and are no longer playing."
"As a coach, Guardiola was special for me, not only because he has been with me the most years but because he knew me from Barça B. He was the one who gave me the opportunity to live all this."