Lee Jae-sung, a 34-year-old professional footballer, has renewed his contract with FC Mainz for an additional two years, as announced on the 12th of the month according to South Korean time. While specific details of the contract remain undisclosed, his enduring impact at Mainz as a key player has been evident since joining from Holstein Kiel in 2021. Over his time at the club, he has made 159 appearances, scoring 28 goals and providing 23 assists, and his performance continues to be significant in the current season, contributing 4 goals and 4 assists so far, aiding the team’s rise to 13th place in the league after a challenging start.

Mainz's sporting director, Nico Bungert, praised Lee for being a model of professionalism and commitment, reiterating his importance to the team both on and off the pitch as they prepare for the upcoming season. Lee expressed his pride in continuing to wear the team's colors and emphasized his comfort and care received at Mainz, which he attributes to the club's supportive environment. His gratitude reflects a strong connection with the team and its fanbase, indicating a positive outlook for both Lee and Mainz as they look forward to the future together.