Germany's doping sisters? The Benfares riddle. Now a sample from her sister Sofia also came back positive.
Erythropoietin is well known in the world of competitive sports as a stimulant. This is a natural hormone that promotes the formation of blood cells and the capacity to carry oxygen. The fact that the substance has now also been discovered in Sister Sofia could cast doubt on the medical necessity in Sara Benfare's case. Their club, LC Rehlingen, suggests that the entire running group around father and coach Samir Benir will leave the club.