Egypt's Ihab Abdelrahman El Sayed, silver, left, and Kenya's Julius Yego, gold, right, celebrate after the men's javelin throw final at the World Athletics Championships at the Bird's Nest stadium in Beijing, Wednesday, Aug. 26, 2015 (AP)

Egypt's Ihab Abdelrahman El Sayed prays after winning the silver medal in the men's javelin at the World Athletics Championships at the Bird's Nest stadium in Beijing, Wednesday, Aug. 26, 2015 (AP)

Egypt's Ihab Abdelrahman El Sayed prepares to throw in the men's javelin at the World Athletics Championships at the Bird's Nest stadium in Beijing, Wednesday, Aug. 26, 2015 (AP)

Ihab Abdelrahman El Sayed of Egypt celebrates after winning silver at the men's javelin throw final during the 15th IAAF World Championships at the National Stadium in Beijing, China, August 26, 2015 (Reuters)

Ihab Abdelrahman El Sayed of Egypt reacts during the men's javelin throw final at the 15th IAAF World Championships at the National Stadium in Beijing, China August 26, 2015 (Reuters)

Tunisia's Habiba Ghribi (AP)

Tunisia's Habiba Ghribi celebrates after finishing second in the women’s 3000m steeplechase final at the World Athletics Championships at the Bird's Nest stadium in Beijing, Wednesday, Aug. 26, 2015 (AP)

Tunisia's Habiba Ghribi (Reuters)

Tunisia's Habiba Ghribi, centre, takes the water jump on her way to winning the silver medal in the women's 3000m steeplechase final at the World Athletics Championships at the Bird's Nest stadium in Beijing, Wednesday, Aug. 26, 2015 (AP)

Kenya's gold medal winner Hyvin Kiyeng Jepkemoi, Tunisia's silver medal winner Habiba Ghribi and Germany's bronze medal winner Gesa Felicitas Krause, from left, compete in the women's 3000m steeplechase final during the World Athletics Championships at the Bird's Nest stadium in Beijing, Wednesday, Aug. 26, 2015 (AP)