Otavio remains the most expensive departure from Porto following his €60m move to Al-Nassr in the 2023/24 season.
The Portugal attacking midfielder made over 280 appearances for FC Porto after arriving from Brazilian side Internacional.
He moved to the Saudi Pro League in August 2023 when Al-Nassr activated a release clause in his contract.
After spending two seasons with Al-Nassr, Otavio joined Al-Qadsiah last summer and he is preparing for another season in the Middle East.
Defensive midfielder Nico Gonzalez is the second most expensive departure from the Portuguese giants following his big-money move to Manchester City in the 2024/25 campaign.
Defenders Eder Militao and Eliaquim Mangala commanded particularly sizeable transfer fees when they moved to Real Madrid and Manchester City respectively.
The likes of Luis Diaz, James Rodriguez and Vitinha are also amongst the most expensive FC Porto departures.