According to sources close to the deal, Frankfurt will not be signing Kaishu Sano from Mainz after all. The midfielder had been heavily linked throughout the window, but the deal is now dead in the water. Reasons for the collapse remain unclear, though it marks a blow to Frankfurt's plans to bolster their squad. The proposed transfer is no longer on the table, and with no competing interest, the player is expected to stay where he is. In season 25/26, Frankfurt are conceding 1.9 goals per game (19 in 10 games), which points to a lack of control in midfield. Kaishu Sano would be expected to calm things down and protect the back line better. There are currently no rumoured links for either Mainz or Frankfurt. Stay tuned for more details as the story develops. Need more Frankfurt transfer rumours? Follow @PlayerSwitchCom on Twitter for news and updates as they happen.