内容摘要：NEW YORK (AP) — Olympic champion Katie Ledecky says faith in the anti-doping system is at an “all-ti

NEW YORK (AP) — Olympic champion Katie Ledecky says faith in the anti-doping system is at an “all-time low” in the wake of the way global regulators handled a case involving Chinese swimmers.

The seven-time Olympic gold medalist is looking to add to her haul this summer in Paris. In an interview with “CBS News Sunday Morning” that will air Sunday, Ledecky expressed concern that she and many others won’t be competing on a level playing field at what could be her fourth Olympics in France.

“It’s hard going into Paris knowing that we’re going to be racing some of these athletes,” said Ledecky, who will be at U.S. Olympic trials starting June 15. “And I think our faith in some of the systems is at an all-time low.”

Among Ledecky’s medals in Tokyo three years ago was a silver from the 4x200-meter freestyle relay that China won. Last month, the New York Times and German broadcaster ARD reported that 23 Chinese swimmers tested positive for a performance-enhancing drug in the months leading up to those Olympics, where some of the Chinese swimmers who tested positive were allowed to compete.