According to TEAMtalk, Brentford are competing with Brighton to sign Mainz midfielder Kaishu Sano. Sources state that Sano has intense interest in England and that Brentford are in the leading position to sign him. The same sources state that Mainz expect a fee between €50million and €60million for the player, whose contract runs until 2028. Mainz have started preparing for his potential departure by identifying replacements and are working with the player to facilitate his next move. Brentford are ready to compete to sign him. Brentford have monitored him closely as they seek to strengthen their midfield. German sources suggest that should Brentford pursue a holding midfielder, he would be a high priority on their list. Brentford scouts have been working across Germany. Interest from other Premier League clubs has also emerged, though the specific clubs remain unconfirmed.

BILD reports that Brentford are interested in Mainz midfielder Kaishu Sanu, who is rated at €50m.

FC Brentford is interested in Kaishu Sano, a 25-year-old Japanese midfielder who plays for Mainz 05. Eintracht Frankfurt has also targeted the player. If the English club decides to intensify its search for a new defensive midfielder, Sano would be a high-priority target. A transfer could happen in the summer, two years before his contract is set to expire. It is reported that Mainz is asking for a minimum of 25 million euros for the player, who is considered a key player. He has not missed a single minute in the current Bundesliga season and was originally signed from Japan in 2024 for 2.5 million euros. The midfielder has 11 caps for Japan, and his market value is currently listed as €25.00m by Transfermarkt.