Kostic has developed into one of the best wing-backs in the Bundesliga in recent years, with his creativity being a particular positive to his game.
The Serbian managed 14 assists in all competitions last season, as well as seven goals.
Now, according to Sky Sports, he is considering a move to West Ham, as seen in the video below.
? Filip Kosti? has turned down two Champions League clubs, but is still open to moving to West Ham
[via: @skysports_sheth] pic.twitter.com/2g26FeTSdi
— Football Daily (@footballdaily) July 28, 2022