However, the clubs have been linked by one name for 112 years.
Charlie Williams was a goalkeeper born in 1872 who joined City as we revamped from Ardwick FC to our current name in 1894.
He made 232 appearances before leaving in 1902 and completing his playing career at Tottenham Hotspur, Norwich City and Brentford.
As per Morten Olesen and Gary James, Williams also became the very first goalkeeper to score from open play during his time at City.
After a two-year spell coaching the Danish national team, Williams was attracted to Brazil by an offer from pioneer Oscar Cox in 1911.
Cox was the co-founder of Fluminense in 1902.
The Rio de Janeiro club had been without a coach for almost 10 years, but when the decision was made that a coach was required, Williams was the only man Cox wanted.
At his presentation, Williams was described as “the man who knows all the secrets and means of the violent sport.”
Williams led Fluminense to the Rio Championship in his first season with six wins out of six and an aggregate score of 21-1.
Fluminense were fifth the following season but he did become the first victorious manager in the first Rio derby between Fluminense and Flamengo.
He returned to the club in 1924 for two seasons, again winning the Rio Championship before leaving for another Rio club, America FC.
Gary James is a football historian who has written extensively on Manchester City’s past. You can read his work here.
Our final at the 2023 FIFA Club World Cup is available to watch in the UK on TNT Sports and FIFA+.
For fans outside of the UK, click here to find out how you can watch the matches in Saudi Arabia.
The official Man City app will also have free live radio commentary as part of our usual Matchday Live show that includes studio guests previewing and analysing the action.