Arsenal captain Laurent Koscielny is fielding offers for next season.
The 33 year-old defender is preparing for next week's Europa League final against Chelsea.
And L'Equipe says the Baku clash could mark Koscielny's last game with the club.
Bayer Leverkusen head a long queue of major European suitors for the France international.
Rennes, AS Monaco and AC Milan have also made contact with Koscielny's minders. The veteran has a year to run on his current deal.