Pep Guardiola saluted "legend" Brian Kidd after the long-time Manchester City assistant manager called time on his career with the Premier League champions.
Kidd, who began his playing days at Manchester United in the 1960s, also appeared as a forward for City during his prime years.
He later became assistant boss to Alex Ferguson at Old Trafford from 1991 to 1998, operating at the Scot's side during a richly successful era in United's history.
Myriad roles, including stints as assistant with Leeds United and England and as manager of Blackburn Rovers, preceded a return to City in September 2009, initially in an academy-focused technical role.
Kidd has since served as first-team assistant under Roberto Mancini, Manuel Pellegrini and most recently Guardiola, with City winning five Premier League titles, six EFL Cups and two FA Cups during this spell.
Guardiola said: "Brian Kidd is a legend in this country. Not only for what he has done here at Manchester City, but at other clubs throughout his incredible career.
"He has been so important to me during my time at the club, and I am sure to Roberto and Manuel also. He has so much respect in our dressing room, from myself, my coaches and most importantly the players.
"His experience has helped us to achieve something very special during his time here and I speak for everyone at Manchester City when I thank him for everything he has done."
Former England forward Kidd, 72, said on City's website: "It has been a privilege to be part of such an exciting chapter in this club's history.
"I can only thank Pep, Roberto and Manuel for their leadership during a period of huge change and challenges for everyone involved here. I hope to have offered them enough help and support along the way to have made a difference and played a small role in the different teams' successes.
"Having also played for Manchester City, it was very special to return and throughout the last 12 years I have felt the warmth of the leadership, the staff and of the fans throughout. I am incredibly grateful to all of them."
