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€30M Offer Tests Mainz's Stance on Sano
1 Sep
Summary
- An unnamed Premier League club submitted a €30m offer for Kaishu Sano.
- Mainz previously considered Sano’s value much higher, up to €50m-€60m.
- The offer includes substantial sell-on participation for future income.

Mainz 05 may be forced into a late transfer window decision regarding Japanese international Kaishu Sano. An unnamed Premier League club has reportedly made a concrete offer, significantly testing Mainz's previously firm stance on keeping the player beyond the summer.
The German club had initially been confident Sano would remain but has now received a proposal valued closer to €30m. This figure is substantially lower than the €50m-€60m previously associated with a potential sale, but the offer reportedly includes significant sell-on participation.
This structure has given Mainz officials pause, despite the extraordinarily late stage of the transfer window. Sporting CEO Christian Heidel had previously warned against losing Sano so close to the deadline due to the lack of time to find a suitable replacement.
Sano's market value has risen dramatically since his arrival two summers ago, from €2.5m to €50m according to recent estimates. He remains a vital player for Mainz, logging near-maximum minutes and forming a fundamental part of the team's midfield structure.