City great Francis Lee told Stats Perform he believes Pep Guardiola's men could "hit the jackpot" in Porto.
The club Lee represented between 1967 and 1974 – winning four major honours, including the 1970 UEFA Cup Winners' Cup – have never taken home Europe's top prize.
Indeed, this is City's first Champions League final, becoming the ninth English team to reach this stage.
The gap of 51 years to that Cup Winners' Cup triumph is the biggest ever between European deciders, longer than Sporting CP's barren 41 years between the 1964 Cup Winners' Cup and 2005 UEFA Cup finals.
But victory against domestic rivals Chelsea would complete a City treble following success in the Premier League and EFL Cup.
Lee was asked by Stats Perform how that might compare to rivals Manchester United's three trophies in 1999.