On the 16th, Rakuten Eagles announced that Ryosuke Tatsumi who had exercised his domestic free agent rights, would remain with the team.

Tatsumi commented through the team's official website: "After exercising my free agency rights once, I realized once again how much Rakuten Eagles have nurtured me over the past seven years. I have now been given a loving contract, and I want to make this a season where I can give good news to the team staff who have high expectations of me, everyone involved, and the fans. This season, both as a team and as an individual, I am serious about winning the championship. I want to achieve results that allow me to take the lead, guide the team to victory, and see smiles in Tohoku and the joy of the Tohoku fans from the field."

Tatsumi joined Rakuten Eagles as the first overall pick in the 2018 draft. From his rookie year in 2019, he played in over 100 games every year, reaching the required number of plate appearances for the first time in 2021. In 2024, he played in all 143 games, hitting 158 hit and winning the most hit title. Last season, he played in 114 games, batting .240 with 7 Home Run and 32 RBI. defense, he has won the Golden Glove Award for outfielder for five consecutive years since 2021.