UEFA President Aleksander Ceferin says he wasn't happy Manchester City's two-year ban from European competitions was overturned, but the governing body does not plan to appeal against the decision at the Swiss federal court.
Ceferin also insisted that UEFA's Financial Fair Play regulations are "not dead," even though City's win at the Court of Arbitration for Sport was seen as a big blow to efforts to curtail spending by rich club owners.
City chairman Khaldoon Al Mubarak, meanwhile, also addressed the situation on Monday and said he wants to build a "constructive relationship" with UEFA after the legal battle grew contentious at times.
City were fined $A17 million for obstructing the investigation into its finances but CAS dropped the Champions League ban after failing to back up UEFA's verdict that the club disguised the source of at least $A336 million of income as sponsorships from companies linked to its Abu Dhabi ownership.
"Nobody wants to lose a case," Ceferin said in an interview with The Associated Press, discussing the City case for the first time.
"We were not happy with the decision of Court of Arbitration for Sport.
"But we have to respect the decision of the body that we agreed is the last instance in our decision-making process.
"It (FFP) is not dead and again, Financial Fair Play was successful in this case, here were some procedural things, obviously that were decisive.
Asked about appealing to the Swiss federal court, Ceferin responded: "I don't want to enter that."
With City heading into a 10th straight season in the UEFA-run Champions League, the club doesn't want any ill-feeling to linger as the team continues its attempts to win the biggest title in European club football for the first time.
City has declined to make its executives available for interviews, but Al Mubarak conducted an end-of-season in-house interview published on the City website.
"Life is too short to carry grudges," Al Mubarak said.
"It is an important competition. It is one of the most prestigious competitions in the world of sports and it is a competition we want to win and it is a competition we have to respect in order to win.
"And this was a challenge. It's behind us, end of story as far as I am concerned. I am focused on one thing - how I can help this club compete in this competition and win it, and how to have a constructive relationship with UEFA. I think it's the only way to go."