The Japan international has a deal to 2023 and Sevilla chief Monchi is keen to bring him to Spain this summer.
Eintracht sports director Markus Krösche has admitted that departures can be expected at the end of the season.
Krosche says players who are tied to Frankfurt until 2023 are candidates to be sold: "If the players do not extend, the situation automatically arises that we have to sell."
Kamada is also being watched by Leeds this season.
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