German newspaper Bild reported that Son Heung-min is the most expensive player on Bayer Leverkusen.
 
Bild said that the buy-out clause for the 22-year-old South Korean striker is 22-point-five million euros, the highest among the players of the Bundesliga club. 
 
A buy-out clause is the minimum amount of money another team is required to pay to the team to take a player.
 
Karim Bellarabi, a winger, had the second highest buy-out clause on Leverkusen at 22 million euros.
 
Of all the Bundesliga clubs, Donis Avdijaj, a 19-year-old striker who moved from Schalke 04 to Austria’s SK Sturm Graz on loan, was given the highest buy-out clause, 49 million euros.