The German, who left the club after four years in the summer of 2020, was part of a number of City sides under Pep Guardiola who had struggled to translate their domestic dominance into European success.
“Congrats @ManCity on the triple! Well-deserved this season,” tweeted the 27-year-old.
While City were far from their best against their Italian counterparts, Rodri’s second-half goal was enough to see them win the one trophy to have eluded them thus far.
Ederson recovered from a shaky start to produce two stunning saves during the dying embers of the game to ensure it did not go to extra-time.
On the full-time whistle, a slightly subpar performance mattered little as emotional City players celebrated an historic treble.