Liverpool are showing strong interest in a potential deal for Kaishu Sano, a 25-year-old Japanese midfielder who plays for Mainz. He is one of four major players being monitored. Manchester United, Arsenal, and Borussia Dortmund are also reportedly interested in the player following his impressive performances for Japan at the World Cup. Sano's contract with the Bundesliga club has two years remaining. According to reports from Germany in March, Mainz will only consider a sale for a bid between €50-60 million (£43-52m). Sano joined Mainz in July 2024. He has 16 caps and 1 goal for Japan. In the 2025/2026 Bundesliga season, he made 34 appearances, scored 1 goal, and provided 3 assists. His current Transfermarkt market value is €40.00m.