On November 4 , 2017 , Irina Viner officially announced to the Russian press that Mamun has completed her competitive career in rhythmic gymnastics . On November 4 , 2017 , Irina Viner officially announced to the Russian press that Mamun has completed her competitive career in rhythmic sports gymnastics .
Pada 4 November 2017, Irina Viner secara rasmi mengumumkan kepada akhbar Rusia bahawa Mamun telah menyelesaikan kerjaya kompetitifnya dalam gimnastik berirama. Pada 4 November 2017, Irina Viner secara rasmi mengumumkan kepada akhbar Rusia bahawa Mamun telah menyelesaikan kerjaya kompetitifnya dalam gimnastik sukan berirama.