Arsenal and Tottenham have been warned that prising William Saliba away from Saint-Etienne will not be easy.
Sources close to a mooted deal for the highly-rated defender have revealed that two north London neighbours are preparing to scrap it out for a prized signature.
A €25 million (£23m/$29m) transfer scramble is expected to be sparked, with the Gunners and Spurs eager to bring a talented 18-year-old onto their books.
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Saliba is Unai Emery’s top defensive target at the Emirates Stadium and talks with Saint-Etienne have been opened.