City currently hold five major trophies - the first time any English side has achieved the feat - and Guardiola says he immensely proud of the achievements of his players and the football club.
“I am so proud of this Club.,” said the boss.
“What we have done is an outstanding achievement.
“To win this trophy is to be the best team in the world and our players, our coaches, our backroom staff, all of them work hard every single day to bring us this success.
“As a manager it is what I am most proud of; that we are always there. No matter how much we win, no matter what trophies we lift, we are there again to fight for the next one.
“To win the Treble was truly special, but to win two more trophies and now hold these five major titles shows the unique mentality of this team, of the Club and its fans.
“It is something no other English team has ever achieved and we will always remember this incredible time we spent together.”