The 2018 winner of the Rotterdam marathon, 4th in Chicago that same year (DNS at Chicago 2019...) and 3rd in Boston this year, has been BUSTED, I give you : Kenneth Kiprop KIPKEMOI
"25/02/2020 Kenneth Kiprop Kipkemoi KEN Presence of Prohibited Substances (Terbutaline) (Article 2.1) Charge Issued"
So Terbutaline just like Kipchoge's favorite pacer Sammy Kitwara...who Renato told us was an "honest accident" by a runner who was too poor/isolated to get proper help, right...
https://www.athleticsintegrity.org/disciplinary-process/provisional-suspensions-in-force