As per Record (via Sportwitness), West Ham and Spurs are keen on the player as well.
Benfica were thought to be keen on the player but they have backed out due to financial reasons.
It will be interesting to see if Leeds can sign Koch this summer. The 23-year-old could prove to be a solid addition to Bielsa’ back four.
Leeds will need better defenders if they are in the Premier League next season. Also, if they fail to sign Ben White permanently, they will need someone to fill his void.