VfL Wolfsburg are inviting a summer auction for Kevin de Bruyne.
The Belgium winger only moved to Wolfsburg last summer from Chelsea, but his form this season has Manchester City, PSG and Bayern Munich among clubs monitoring his situation.
Kicker says Wolfsburg aren't actively seeking to sell De Bruyne, but will welcome an auction if major rivals are serious.
There is a genuine belief inside the Wolfsburg boardroom that De Bruyne's price could reach as high as €80 million - which would make his sale a Bundesliga record.
De Bruyne's current deal runs to 2019.