Nketiah, off contract in June, is interesting Borussia Monchengladbach and Bayer Leverkusen.
However, Germany's Transfermarkt reports Leeds are among a host of clubs who have enquired over his availability.
Nketiah is out of contract with the Gunners at the end of the season and so Arsenal may look to move him on in January to avoid losing him for nothing.
He spent the first half of the 2019/20 season on loan at Leeds, scoring five goals in 19 appearances across all competitions.
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