Chicago Marathon champion Rita Jeptoo failed a doping test in September, the Kenyan runner's agent said Friday.
Chicago hosted the running world once again Sunday as nearly 45,000 runners took to the streets for the 2014 Bank of America Chicago Marathon.
Rita Jeptoo of Kenya won her second consecutive Bank of America Chicago Marathon.
Two men running in the Chicago Marathon required CPR and one was in critical condition, according to the race's medical director.
Eliud Kipchoge has won the 2014 Bank of America Chicago Marathon.
University of Illinois alum Tatyana McFadden won her fourth consecutive Chicago Marathon Sunday in the women's wheelchair race.