MONTREAL — The track and field world championships ended Sunday, marking the conclusion of the usual drama.
Once again, in a sport beleaguered by drug use, a dark, discouraging cloud of doping loomed overhead, casting doubt on the athletic performances below and threatening to rain bad news.
The Russian teams remained the focus of an investigation involving accusations of widespread doping, cover-ups and collusion. Two Kenyans tested positive for performance-enhancing drugs, adding to that team’s list of more than 30 runners who have failed drug screenings since 2012. And those are the dirty stories of only two countries.