In August 2009, Lázsló Köteles joined the BelgianKRC Genk on a one-year loan with an option to make the move permanent.[2] The club has already had two other Hungarian players (Dániel Tőzsér and Balázs Tóth).
It was uncertain whether KRC Genk would continue with Köteles as the Hungarian has had some flaws in a few games, but in the play-offs of the Belgian league he got back to his regular level. In a small amount of time, Köteles has gained a lot of popularity with Genk fans due to his enthusiastic style of goalkeeping and the interaction with the fans, making them think of the legendary and unmatched popular goalkeeper István Brockhauser (also Hungarian) when the latter was first goalkeeper at KRC Genk, back in the 1990s.