Florian Wirtz knows what it is to be a wanted man. For many young footballers a summer where three of Europe's leading clubs (briefly) fought it out for his services might be enough to have their head spinning.

Florian Wirtz's impending move to Liverpool looks set to be at the centre of a dispute between Bayer Leverkusen and Koln following comments from Koln president Werner Wolf

Germany's Rhineland clubs - namely Leverkusen, Koln and Borussia Monchengladbach - were all reported to have a gentleman's agreement not to 'steal' one another's youth talent, dating back to 2001, when Koln tracked and signed Leverkusen's then-12-year-old starlet Marco Quotschalla with the lure of an eight-year contract.