In 2018, Ekdahl Du Rietz returned to his former club Rhein-Neckar Löwen, signing a three month contract to help the club – currently suffering from several injuries on important players – out. Ekdahl Du Rietz also decided to give away all the money earnt to charity organisations. In April 2018 his club Rhein-Neckar Löwen announced that next season Kim Ekdahl du Rietz will transfer to Paris Saint-Germain Handball. At the same time he also made a comeback to the swedish national team, and participated in both 2019 World Championship and 2020 European Championship.