Egyptian swimmer Farida Osman qualified to the 50m butterfly semi-final on Thursday in the World Swimming Championships held in Kazan, Russia. Osman finished 12th in the preliminary heats with 26.33 seconds. The 20 years old swimmer from Cairo Gezira club finished 7th in the Barcelona 2013 World Championships, the best result ever for Egypt at the World Championships. Osman will play the semi-final tonight. http://english.ahram.org.eg/News/137161.aspx